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Lenovo YOGA 3 Pro-1370 Hardware Maintenance Manual

Perform operational charging. If the battery status indicator or icon is not lit, 

remove the battery pack and let it return to room temperature. Reinstall the 

battery pack. If the charge indicator or icon is still off, replace the battery pack.

If the charge indicator is still not lit, replace the system board.

Summary of Contents for YOGA 3 Pro-1370

Page 1: ...Lenovo YOGA 3 Pro 1370 Hardware Maintenance Manual ...

Page 2: ...ces on page 60 First Edition August 2014 Copyright Lenovo 2014 All rights reserved LIMITED AND RESTRICTED RIGHTS NOTICE If data or software is delivered pursuant a General Services Administration GSA contract use reproduction or disclosure is subject to restrictions set forth in Contract No GS 35F 05925 2014 Lenovo ...

Page 3: ... disk password 22 Supervisor password 22 Power management 23 Screen blank state 23 Putting the computer to sleep or shutting it down 23 Putting your computer to sleep 23 Shutting down the computer 24 Lenovo YOGA 3 Pro 1370 26 Specifications 26 Status indicators 28 Fn key combinations 29 FRU replacement notices 30 Screw notices 30 Removing and replacing an FRU 31 1010 Base cover 32 1020 Battery pac...

Page 4: ...ion guidelines and safety information required for servicing computers The product specific section includes service reference and product specific parts information Important This manual is intended only for trained servicers who are familiar with Lenovo products Use this manual to troubleshoot problems effectively Before servicing a Lenovo product make sure to read all the information under Safe...

Page 5: ...efore you service a Lenovo YOGA 3 Pro 1370 computer General safety on page 2 Electrical safety on page 3 Safety inspection guide on page 5 Handling devices that are sensitive to electrostatic discharge on page 6 Grounding requirements on page 6 Safety notices multilingual translations on page 7 Laser compliance statement on page 14 ...

Page 6: ...e place away from all personnel while you are servicing the machine Keep your toolcase away from walk areas so that other people will not trip over it Do not wear loose clothing that can be trapped in the moving parts of the machine Make sure that your sleeves are fastened or rolled up above your elbows If your hair is long fasten it Insert the ends of your necktie or scarf inside clothing or fast...

Page 7: ...x in the off position If you need to work on a machine that has exposed electrical circuits observe the following precautions Ensure that another person familiar with the power off controls is near you Attention Another person must be there to switch off the power if necessary Use only one hand when working with powered on electrical equipment keep the other hand in your pocket or behind your back...

Page 8: ...ce of a plastic dental mirror The surface is conductive such touching can cause personal injury and machine damage Do not service the following parts with the power on when they are removed from their normal operating places in a machine Power supply units Pumps Blowers and fans Motor generators and similar units This practice ensures correct grounding of the units If an electrical accident occurs...

Page 9: ...e or missing hardware To determine whether there are any potential unsafe conditions use the following checklist at the beginning of every service task Begin the checks with the power off and the power cord disconnected Checklist 1 Check exterior covers for damage loose broken or sharp edges 2 Turn off the computer Disconnect the power cord 3 Check the power cord for a A third wire ground connecto...

Page 10: ...skin to eliminate static on your body Prevent the part from touching your clothing Most clothing is insulative and retains a charge even when you are wearing a wrist strap Use the black side of a grounded work mat to provide a static free work surface The mat is especially useful when handling ESD sensitive devices Select a grounding system such as those listed below to provide protection that mee...

Page 11: ... Austausch der Computer wieder angeschlossen wird muß sichergestellt werden daß keine Schrauben Federn oder andere Kleinteile fehlen oder im Gehäuse vergessen wurden Der Computer muß geschüttelt und auf Klappergeräusche geprüft werden Metallteile oder splitter können Kurzschlüsse erzeugen Prima di accendere l elaboratore dopo che é stata effettuata la sostituzione di una FRU accertarsi che tutte l...

Page 12: ...thalten Sie darf nicht zerlegt wiederaufgeladen kurzgeschlossen oder Feuer oder Wasser ausgesetzt werden Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten Beim Ersetzen der Bereitschafts oder Systembatterie nur Batterien des Typs verwenden der in der Ersatzteilliste aufgeführt ist Der Einsatz falscher Batterien kann zu Entzündung oder Explosion führen Alcune batterie di riserva...

Page 13: ...schlossen oder Feuer oder Wasser ausgesetzt werden Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten Beim Ersetzen der Batterie nur Batterien des Typs verwenden der in der Ersatzteilliste aufgeführt ist Der Einsatz falscher Batterien kann zu Entzündung oder Explosion führen La batteria contiene piccole quantità di nichel Non smontarla gettarla nel fuoco o nell acqua né cortocir...

Page 14: ... dieses Typs dürfen nicht aufgeladen zerlegt über 100 C erhitzt oder verbrannt werden Auch darf ihr Inhalt nicht mit Wasser in Verbindung gebracht oder der zur richtigen Polung angebrachte Verbindungsstecker entfernt werden Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten Beim Ersetzen der Batterie nur Batterien des Typs verwenden der in der Ersatzteilliste aufgeführt ist Der ...

Page 15: ...irm besteht aus Glas und kann zerbrechen wenn er unsachgemäß behandelt wird oder der Computer auf den Boden fällt Wenn der Bildschirm beschädigt ist und die darin befindliche Flüssigkeit in Kontakt mit Haut und Augen gerät sollten die betroffenen Stellen mindestens 15 Minuten mit Wasser abgespült und bei Beschwerden anschließend ein Arzt aufgesucht werden Nel caso che caso l LCD si dovesse rompere...

Page 16: ...ed battery can produce enough current to burn personnel or combustible materials Bien que le voltage des batteries principales soit peu élevé le court circuit ou la mise à la masse d une batterie peut produire suffisamment de courant pour brûler des matériaux combustibles ou causer des brûlures corporelles graves Obwohl Hauptbatterien eine niedrige Spannung haben können sie doch bei Kurzschluß ode...

Page 17: ...t déconnectez tous les cordons d interface Die Stromzufuhr muß abgeschaltet alle Stromkabel aus der Steckdose gezogen der Akku entfernt und alle Verbindungskabel abgenommen sein bevor eine FRU entfernt wird Prima di rimuovere qualsiasi FRU spegnere il sistema scollegare dalle prese elettriche tutti i cavi di alimentazione rimuovere la batteria e poi scollegare i cavi di interconnessione Antes de q...

Page 18: ... posted on the customer support site http support lenovo com Strategy for replacing FRUs Before replacing parts Make sure that all software fixes drivers and BIOS downloads are installed before replacing any FRUs listed in this manual After a system board is replaced ensure that the latest BIOS is loaded to the system board before completing the service action To download software fixes drivers an...

Page 19: ...onfiguration settings using the View Configuration option then when service has been completed verify that those settings remain in effect Strategy for replacing a hard disk drive Always try to run a low level format before replacing a hard disk drive This will cause all customer data on the hard disk to be lost Make sure that the customer has a current backup of the data before performing this ac...

Page 20: ...ompliance well before the implementation date and expects its suppliers to be ready to support Lenovo s requirements and schedule in the EU Products sold in 2005 and 2006 will contain some RoHS compliant FRUs The following statement pertains to these products and any product Lenovo produces containing RoHS compliant FRUs RoHS compliant FRUs have unique FRU part numbers Before or after the RoHS imp...

Page 21: ...ence might have been altered If you select an incorrect drive data or programs might be overwritten Replace an FRU only with another FRU of the correct model When you replace an FRU make sure that the machine model and the FRU part number are correct by referring to the FRU parts list An FRU should not be replaced just because of a single unreproducible failure Single failures can occur for a vari...

Page 22: ... the warranty by referring to the following list The following are not covered under warranty LCD panel cracked from the application of excessive force or from being dropped Scratched cosmetic parts Distortion deformation or discoloration of the cosmetic parts Plastic parts latches pins or connectors that have been cracked or broken by excessive force Damage caused by liquid spilled into the syste...

Page 23: ...t continuity and installation If the computer does not charge during operation go to Checking operational charging To check the AC adapter follow the steps below 1 Unplug the AC adapter cable from the computer 2 Measure the output voltage at the plug of the AC adapter cable See the following figure Note Output voltage for the AC adapter pin No 2 may differ from the one you are servicing 3 If the v...

Page 24: ...ging If the battery status indicator or icon is not lit remove the battery pack and let it return to room temperature Reinstall the battery pack If the charge indicator or icon is still off replace the battery pack If the charge indicator is still not lit replace the system board ...

Page 25: ...ey Recovery System In order to save application files and the initial backed up files of the system the hard disk in a Lenovo computer includes a hidden partition when it is shipped If you need to restore the system to the point of your first boot up just enter Lenovo OneKey Recovery System and run System Recovery For details of OneKey Recovery System see the User Guide for Lenovo OneKey Recovery ...

Page 26: ... the system administrator who can use it to get access to the hard disk drive even if the user has changed the user HDP Attention If the user HDP has been forgotten check whether a master HDP has been set If it has it can be used for access to the hard disk drive If no master HDP is available neither Lenovo nor Lenov authorized service technicians provide any services to reset either the user or t...

Page 27: ...it to sleep or shut it down Putting your computer to sleep If you will be away from your computer briefly put the computer to sleep When the computer is in sleep mode you can quickly wake it to resume use bypassing the startup process To put the computer to sleep do one of the following Close the display lid Press the Power button Press and hold or right click the Start button in the lower left co...

Page 28: ...uter do one of the following Open the charms bar and select Settings Power Shut down Right click the Start button in the lower left corner and select Shut down or sign out Shut down Right click the Start button in the lower left corner and select Shut down or sign out Shut down Chapter 2 Starting to use Windows 8 1 19 Shutting down the computer If you are not going to use your computer for a long ...

Page 29: ...ct Shut down Note This operation depends on your BIOS settings Please refer to the actual product Note This operation depends on your BIOS settings Please refer to the actual product 20 Chapter 2 Starting to use Windows 8 1 On the Start screen click and select Shut down Note This operation depends on your BIOS settings Please refer to the actual product ...

Page 30: ...t on page 52 Specifications The following table lists the specifications of the Lenovo YOGA 3 Pro 1370 Table 1 Specifications Feature Description Processor View the system properties of your computer You can do this as follows Open the Control Panel and then select System and Security System Bus architecture LP DDR3 PCI Express bus DMI Graphic Chipset Intel BDW GT2 Display 13 3 inch Standard memor...

Page 31: ...ated Speakers Stereo 2 Built in microphone 2 PCI Express Mini Card slot Intel 802 11 A C 2 2 Bluetooth wireless Combined in combo card Keyboard 5 Rows ISO Full Size Keyboard Back light Touch pad Multi touch type Integrated camera 1 0 Mega or 720P HD Battery Li Polymer 44 Wh AC adapter 20 V 40 W Pre installed operating system Win8 1 Windows Blue 64 ...

Page 32: ... in hibernation mode Battery status indicator Indicator Indicator status Meaning Battery status indicator On solid white The battery has more than 20 charge Solid amber The battery has between 5 and 20 charge Fast blinking amber The battery has less than 5 charge Slow blinking amber The battery is being charged When battery charge reaches 20 the blinking color changes to white Slow blinking white ...

Page 33: ...dow Fn Delete Enables disables the touch pad Fn Turns on off the backlight of the LCD screen Fn PgUp Activates the pause function Fn PgDn Activates the break function Fn PrtSc Mutes unmutes the sound Fn Increases decreases display brightness Fn Increases decreases sound volume Fn Space Enable Disable the keyboard backlight Note If you changed the HotKey Mode from Disabled to Enabled in the BIOS se...

Page 34: ...refully remove screws for reuse when replacing FRUs Use a torque screwdriver if you have one Tighten screws as follows Plastic to plastic Turn an additional 90 after the screw head touches the surface of the plastic part more than 90 Cross section Logic card to plastic Turn an additional 180 after the screw head touches the surface of the logic card more than 180 Cross section Torque driver If you...

Page 35: ...the arrow in the figure 7 To put the new FRU in place reverse the removal procedures and follow any of the notes that pertain to replacement For information about connecting and arranging internal cables see Locations on page 58 8 When replacing an FRU use the correct screw as shown in the procedures DANGER Before removing any FRU turn off the computer unplug all power cords from electrical outlet...

Page 36: ...enance Manual 1010 Base cover Figure 1 Removal steps of base cover Remove the screws 1 Then remove the base cover 2 1 1 1 1 1 1 1 1 1 1 2 Step Screw quantity Color Torque P N 1 M2 3 3 mm Torx nylok coated 10 Silver 2 0 2 5 kgf cm MA00000T6G0 ...

Page 37: ... on the new base cover a Rating label WW or China b Rating label print c BT label for US CA TW Brazil Indonesia Israel Malaysia d WLAN label for US CA TW Brazil Indonesia Israel Malaysia e KCC label f Indonesia D side label For some models you also need to apply one or two FCC labels Check the old base cover if it has one or two FCC labels find duplicates of them in the label kit and apply them to...

Page 38: ...ur computer Any other battery could ignite or explode Figure 2 Removal steps of battery pack Unplug the battery connector 1 and remove the screws 2 Then remove the battery pack in the direction shown by arrow 3 2 2 2 2 1 3 2 2 Step Screw quantity Color Torque 2 M2 3 5 mm cross head nylok coated 6 Black 1 5 2 0 kgf cm When installing Make sure that the battery connector is attached firmly ...

Page 39: ... 33 1020 Battery pack on page 35 Figure 3 Removal steps of PCI Express Mini Card for wireless LAN Disconnect the two wireless LAN cables black white 1 and then remove the screw 2 1 3 2 Step Screw quantity Color Torque 2 M2 2 5 mm cross head nylok coated 1 Black 1 5 2 0 kgf cm Remove the card in the direction shown by arrow 3 1 3 2 ...

Page 40: ...tep 1 The wireless LAN card in some models might have 3 cables in step 1 When installing In models with a wireless LAN card that has two antenna connectors plug the black cable 1st MAIN into the jack labeled 1 and the white cable 2nd AUX into jack labeled 2 on the card In models with a wireless LAN card that has three antenna connectors plug the black cable 1st MAIN into the jack labeled 1 the gre...

Page 41: ...al steps of audio board Detach the connectors 1 2 and 3 in sequence Remove the screws D Lift the audio board in the direction shown by arrow E Be careful not to damage the connector 2 3 1 4 4 4 5 Step Screw quantity Color Torque D M2 3 5 mm cross head nylok coated 3 Black 1 5 2 0 kgf cm When installing Make sure that the connectors are attached firmly ...

Page 42: ...20 Battery pack on page 34 1030 PCI Express Mini Card for wireless LAN on page 35 Figure 5 Removal steps of HDMI board Release the antenna cables as shown below 1 1 2 Remove the screws 1 Lift the HDMI board in the direction shown by arrow 2 1 1 2 Step Screw quantity Color Torque A M2 3 5 mm cross head nylok coated 2 Black 1 5 2 0 kgf cm ...

Page 43: ... and heat sink assembly Remove the screws 1 Lift the fan and heat sink assembly in the direction shown by arrow B Be careful not to damage the connector 1 1 1 1 1 2 Step Screw quantity Color Torque A M2 2 5 mm cross head nylok coated 5 Black 1 5 2 0 kgf cm Attention Do not handle the fan and heat sink assembly roughly Improper handling can cause distortion or deformation and imperfect contact with...

Page 44: ...remove these FRUs in order 1010 Base cover on page 32 1020 Battery pack on page 34 Figure 7 Removal steps of SSD Remove the screws 1 Lift the SSD in the direction shown by arrow B 1 2 Step Screw quantity Color Torque A M2 2 5 mm cross head nylok coated 1 Black 1 5 2 0 kgf cm ...

Page 45: ...site Avoid rough handling of any kind During the whole process make sure not to drop or stack the mainboard If you put a mainboard down make sure to put it only on a padded surface such as an ESD mat or conductive corrugated material For access remove these FRUs in order 1010 Base cover on page 32 1020 Battery pack on page 34 1040 Audio board on page 37 1050 HDMI board on page 38 1060 Fan and heat...

Page 46: ...e careful not to damage the connector 1 2 3 4 5 5 5 5 Step Screw quantity Color Torque E M2 2 0 mm cross head nylok coated 4 Black 1 5 2 0 kgf cm Turn over the mainboard in the direction shown by arrow 1 and detach the LCD FPC connector B Be careful not to damage the connector 1 2 When installing Make sure that the connectors are attached firmly ...

Page 47: ...se FRUs in order 1010 Base cover on page 32 Figure 9 Removal steps of LCD module Remove the screws 1 Lift the LCD module in the direction shown by arrow B 1 1 1 1 1 1 1 1 2 Step Screw quantity Color Torque A M2 3 5 mm cross head nylok coated 8 Black 1 5 2 0 kgf cm ...

Page 48: ...r access remove these FRUs in order 1010 Base cover on page 32 Figure 10 Removal steps of DC in cable Remove the screws A Lift the DC in cable in the direction shown by arrow B 1 1 2 Step Screw quantity Color Torque A M2 2 5 mm cross head nylok coated 2 Black 1 5 2 0 kgf cm ...

Page 49: ...ni Card for wireless LAN on page 35 Figure 11 Removal steps of speakers and antennas Remove the screws 1 Lift the speakers in the direction shown by arrow B 1 1 1 2 2 1 Step Screw quantity Color Torque A M2 4 0 mm cross head nylok coated 4 Black 1 5 2 0 kgf cm Figure 11 Removal steps of speakers and antennas Detach the antennas in the direction shown by arrow 1 1 1 ...

Page 50: ...ese FRUs in order 1010 Base cover on page 32 1020 Battery pack on page 34 Figure 12 Removal steps of touch pad module Remove the screws A Lift the touch pad module in the direction shown by arrow B 1 1 1 2 Step Screw quantity Color Torque A M2 2 5 mm cross head nylok coated 6 Black 1 5 2 0 kgf cm ...

Page 51: ...l steps of mylar hinge cover LCD bezel Remove the mylar in the direction of arrow shown by 1 Remove the eight screws B covered by the mylar Remove the LCD bezel in the direction of arrow shown by arrow C Remove the two screws D Remove the hinge cover 1 2 2 2 2 2 4 4 3 2 2 2 Step Screw quantity Color Torque A D M2 2 0 mm cross head nylok coated 10 Black 1 5 2 0 kgf cm ...

Page 52: ... on page 32 1090 LCD module on page 43 1130 Mylar hinge cover LCD bezel on page 47 Figure 17 Removal steps of camera sensor board MIC board vibrator and LCD panel Remove the vibrator 1 Detach connectors B C and F Remove the LCD panel connector in the direction as shown by arrow D Remove the camera and sensor board in the direction as shown by arrow E 5 5 6 3 2 1 4 ...

Page 53: ...1150 LCD magnets For access remove these FRUs in order 1010 Base cover on page 32 1090 LCD module on page 43 1130 Mylar hinge cover LCD bezel on page 47 Figure 18 Removal steps of LCD module Remove the LCD magnets as shown below ...

Page 54: ...Windows button 4 Built in microphones 5 Wireless LAN antennas 6 Touch pad 7 Power button and power status indicator 8 Battery status indicator Note For the description of each indicator see Status indicators on page 29 9 Novo button J Rotation lock button K Volume buttons L Micro HDMI port M USB 3 0 port 1 2 4 4 5 5 6 7 8 9 10 11 12 13 3 ...

Page 55: ...51 Lenovo YOGA 3 Pro 1370 Bottom and Left side view 1 Speakers 2 Memory card slot 3 Micro HDMI port 4 USB 3 0 port E AC power adapter jack 2 3 4 5 1 1 ...

Page 56: ...his section presents the following service parts Overall on page 53 LCD FRUs on page 56 Keyboard on page 57 Screws on page 59 AC adapters on page 59 USB cords on page 59 Notes Each FRU is available for all types or models unless specific types or models are specified ...

Page 57: ...53 Lenovo YOGA 3 Pro 1370 Overall 1 2 3 4 5 6 8 9 10 11 12 13 7 ...

Page 58: ...5 N 7 Upper case L YOGA 3 ProW KB SCW IT 5CB0G97340 N 7 Upper case L YOGA 3 ProW KB SCW IN 5CB0G97355 N 7 Upper case L YOGA 3 ProW KB SCW CF 5CB0G97370 N 7 Upper case L YOGA 3 ProW KB SCW KO 5CB0G97321 N 7 Upper case L YOGA 3 ProW KB SCW NL 5CB0G97337 N 7 Upper case L YOGA 3 ProW KB SCW GK 5CB0G97353 N 7 Upper case L YOGA 3 ProW KB SCW SP 5CB0G97369 N 7 Upper case L YOGA 3 ProW KB SCW CH 5CB0G9732...

Page 59: ...N 9 MB L YOGA 3 Pro W8P 5Y70 8G 5B20G97356 N 9 MB L YOGA 3 Pro NOK 5Y70 4G 5B20G97371 N 9 MB L YOGA 3 Pro W8S 5Y70 4G 5B20G97324 N 9 MB L YOGA 3 Pro W8P 5Y70 4G 5B20G97339 N 10 Intel 7265 2x2AC BT PCIE M 2 WLAN SAR NV SW10A11522 N 10 Cbt BCM4352 2x2AC BT4 0 PCIE M 2 WLAN 20200480 N 11 128G SSD MZNTE128HMGR 000L2 16200609 N 11 128G SSD L8T 128L9G 128GB M 2 5SD0F65755 N 11 256G SSD MZNTE256HMHP 000L...

Page 60: ...oard L YOGA 3 Pro W Ahve 5C50G97332 N 3 EDP Cable L YOGA 3 Pro Luxshare 5C10G97348 N 3 EDP Cable L YOGA 3 Pro Sumitomo 5C10G97362 N 4 Camera L YOGA 3 Pro 720P HD 5C20G97570 N 5 Sensor Board L YOGA 3 Pro W Ahve 5C50G97318 N 6 Hinge Cover L YOGA 3 Pro W Mylar 5H50G97322 N 7 LCD Cover L YOGA 3 Pro SV 5CB0G97365 N 7 LCD Cover L YOGA 3 Pro Gold 5CB0G97317 N 7 LCD Cover L YOGA 3 Pro Orange 5CB0G97331 N ...

Page 61: ...JMEBlackKeyKBD Spanish SN20F66324 N Greek69KeyST3YBJMEBlackKeyKBD Greek SN20F66325 N TradChine69KeyST3YBJMEBlackKeyKBD Traditional Chinese SN20F66328 N Hebrew69KeyST3YBJMEBlackKeyKBD Hebrew SN20F66331 N Turkish70KeyST3YBJMEBlackKeyKBD Turkish SN20F66332 N Russian69KeyST3YBJMEBlackKeyKBD Russian SN20F66336 N Swiss70KeyST3YBJMEBlackKeyKBD Swiss SN20F66338 N Hungarian70KeyST3YBJMEBlackKeyKBD Hungaria...

Page 62: ...kKeyKBD Italian SN20F66327 N Swiss70KeyST3YBOKIBlackKeyKBD Swiss SN20F66329 N Greek69KeyST3YBOKIBlackKeyKBD Greek SN20F66330 N Russian69KeyST3YBOKIBlackKeyKBD Russian SN20F66333 N Hebrew69KeyST3YBOKIBlackKeyKBD Hebrew SN20F66334 N USInter69KeyST3YBOKIBlackKeyKBD English International SN20F66335 N Spanish70KeyST3YBOKIBlackKeyKBD Spanish SN20F66337 N French70KeyST3YBOKIBlackKeyKBD French SN20F66341 ...

Page 63: ... 20V 5 2V 2A 40W adapter 36200562 Delta ADL40WDB 20V 5 2V 2A 40W adapter 36200563 Delta ADL40WDD 20V 5 2V 2A 40W adapter 36200564 Delta ADL40WDG 20V 5 2V 2A 40W adapter 36200565 Delta ADL40WDE 20V 5 2V 2A 40W adapter 36200566 Delta ADL40WDC 20V 5 2V 2A 40W adapter 36200567 Chicony ADL40WCA 20V 5 2V 2A40W adapter 36200579 Chicony ADL40WCB 20V 5 2V 2A40W adapter 36200580 Chicony ADL40WCC 20V 5 2V 2A...

Page 64: ...ent may not apply to you This information could include technical inaccuracies or typographical errors Changes are periodically made to the information herein these changes will be incorporated in new editions of the publication Lenovo may make improvements and or changes in the product s and or the program s described in this publication at any time without notice The products described in this d...

Page 65: ...ble systems Furthermore some measurements may have been estimated through extrapolation Actual results may vary Users of this document should verify the applicable data for their specific environment Trademarks The following terms are trademarks or registered trademarks of Lenovo in the United States other countries or both Lenovo OneKey Microsoft and Windows are trademarks of Microsoft Corporatio...

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