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Use the USB repair shim

Step 1. Tap

in the system tray to shut down the Chromebook.

Step 2. Press the power button, and the two ends of the volume button together to enter the recovery

mode.

Step 3. Press the two ends of the volume button together, and then the Chrome OS recovery menu is

displayed. Use the two ends of the volume button to navigate and the power button to select

Confirm Disabling OS Verification

Step 4. After the Chromebook enters the developer mode, wait 30 seconds for the Chromebook to restart.

Step 5. Depart the LCD unit from the base cover assembly (see “1010 LCD unit and LCD cable” on page

34) until the pins are exposed. Short-circuit the pins on the system board and keep them short-
circuited until the image is installed.

Step 6. Connect the Chromebook to a conventional keyboard through a compatible USB dongle. Press

Ctrl + Alt + F2

to open the Developer Console. Type

root

to log in, and then type

enable_dev_usb_

boot

to enable USB booting.

Note:

If the Chromebook is connected to a Keyboard Folio, press

Ctrl + Alt +

to open the

Developer Console.

Step 7. Type

reboot

to restart the Chromebook.

Step 8. Connect the prepared USB repair shim to the Chromebook. After the OS verification screen is

displayed, press

Ctrl + U

. The Chromebook will install the image automatically.

Step 9. After the process is completed, press

Enter

to restart the Chromebook.

Step 10. Remove the USB repair shim from the Chromebook and reinstall the LCD unit.

Step 11. Follow the on-screen instructions to start the FFT.

Note:

If the FFT detects a defective component, turn off the Chromebook, detach the ac power

adapter, and then replace the defective component.

Step 12. Start the RunIn and FAT (this is an optional operation).

Step 13. Follow the on-screen instructions to start the GRT. If the tests finish successfully, all data stored on

the Chromebook is deleted and the Chromebook is turned off. If the GRT fails, they might result

Lenovo 10e Chromebook Tablet Hardware Maintenance Manual

Содержание 10e Chromebook

Страница 1: ...Lenovo 10e Chromebook Tablet Hardware Maintenance Manual ...

Страница 2: ...nder Appendix B Notices on page 51 First Edition February 2020 Copyright Lenovo 2020 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 ...

Страница 3: ...ir shim 25 Create a USB repair shim 25 Use the USB repair shim 26 Chapter 4 Identifying FRUs CRUs 29 Locating FRUs and CRUs 29 Major FRUs and CRUs 30 Miscellaneous parts 31 Looking up FRU information 31 Chapter 5 Removing or replacing a FRU 33 General guidelines 33 Disabling the built in battery 34 1010 LCD unit and LCD cable 34 1020 Front camera with cable 36 1030 Microphone board 37 1040 Microph...

Страница 4: ...ii Lenovo 10e Chromebook Tablet Hardware Maintenance Manual ...

Страница 5: ...r trained service technicians who are familiar with Lenovo products Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively Depending on the model some hardware configuration and software programs might not be available on the Chromebook Some statements in this manual might not be applicable to the Chromebook Before servicing a Lenovo product be sure to read a...

Страница 6: ...iv Lenovo 10e Chromebook Tablet Hardware Maintenance Manual ...

Страница 7: ...ans and the customer s personnel are not in a hazardous position Place removed covers and other parts in a safe 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 a machine Ensure that your sleeves are fastened or rolled up above yo...

Страница 8: ...al shock can occur only when there is a complete circuit By observing the above rule you may prevent a current from passing through your body When using testers set the controls correctly and use the approved probe leads and accessories for that tester Stand on suitable rubber mats obtained locally if necessary to insulate you from grounds such as metal floor strips and machine frames Observe the ...

Страница 9: ...mputer Disconnect the power cord 3 Check the power cord for a A third wire ground connector in good condition Use a meter to measure third wire ground continuity for 0 1 ohm or less between the external ground pin and the frame ground b The power cord should be the authorized type specified for your computer Go to https support lenovo com partslookup c Insulation must not be frayed or worn 4 Check...

Страница 10: ...nt Note The use of a grounding system to guard against ESD damage is desirable but not necessary Attach the ESD ground clip to any frame ground ground braid or green wire ground When working on a double insulated or battery operated system use an ESD common ground or reference point You can use coax or connector outside shells on these systems Use the round ground prong of the ac plug on ac operat...

Страница 11: ...DANGER DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information 5 ...

Страница 12: ...DANGER 6 Lenovo 10e Chromebook Tablet Hardware Maintenance Manual ...

Страница 13: ...PERIGO Chapter 1 Safety information 7 ...

Страница 14: ...PERIGO PERIGO PERIGO PERIGO 8 Lenovo 10e Chromebook Tablet Hardware Maintenance Manual ...

Страница 15: ...PERIGO PERIGO PERIGO DANGER DANGER Chapter 1 Safety information 9 ...

Страница 16: ...DANGER DANGER DANGER DANGER DANGER 10 Lenovo 10e Chromebook Tablet Hardware Maintenance Manual ...

Страница 17: ...DANGER VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information 11 ...

Страница 18: ...VORSICHT VORSICHT VORSICHT VORSICHT 12 Lenovo 10e Chromebook Tablet Hardware Maintenance Manual ...

Страница 19: ...Chapter 1 Safety information 13 ...

Страница 20: ...14 Lenovo 10e Chromebook Tablet Hardware Maintenance Manual ...

Страница 21: ...Chapter 1 Safety information 15 ...

Страница 22: ...16 Lenovo 10e Chromebook Tablet Hardware Maintenance Manual ...

Страница 23: ...Chapter 1 Safety information 17 ...

Страница 24: ...18 Lenovo 10e Chromebook Tablet Hardware Maintenance Manual ...

Страница 25: ...Chapter 1 Safety information 19 ...

Страница 26: ...20 Lenovo 10e Chromebook Tablet Hardware Maintenance Manual ...

Страница 27: ...or log and run the test again If the error does not recur do not replace the FRU Be careful not to replace a nondefective FRU What to do first When you return a FRU you must include the following information in the parts exchange form or parts return form that you attach to it 1 Name and phone number of service technician 2 Date of service 3 Date on which the machine failed 4 Date of purchase 5 Fa...

Страница 28: ...correct continuity and installation If the computer does not charge during operation go to Checking the built in battery and operational charging on page 22 To check the ac power adapter measure the output voltage across the plug of the ac power adapter cable to see if the voltage is correct Notes Noise from the ac power adapter does not always indicate a defect Ensure that you use the ac power ad...

Страница 29: ...4 Check the battery status icon again If the same error still exists replace the system board Chapter 2 General checkout 23 ...

Страница 30: ...24 Lenovo 10e Chromebook Tablet Hardware Maintenance Manual ...

Страница 31: ...he overall test marked as failed RunIn and FAT The RunIn and FAT are designed to test how the system functions under stress by running the maximum workload It takes about 10 minutes to finish Google Required Tests GRT The GRT is designed to check the system status and help reset the system back to factory settings If any test fails the finalized step of the GRT has to be forced to end in order to ...

Страница 32: ...pe root to log in and then type enable_dev_usb_ boot to enable USB booting Note If the Chromebook is connected to a Keyboard Folio press Ctrl Alt to open the Developer Console Step 7 Type reboot to restart the Chromebook Step 8 Connect the prepared USB repair shim to the Chromebook After the OS verification screen is displayed press Ctrl U The Chromebook will install the image automatically Step 9...

Страница 33: ...are for the lifetime of the Chromebook Reset the Chromebook to factory settings HWID mismatch can be caused by using unauthorized or missing parts If the write protect function is not turned off before recovering the Chromebook with the USB repair shim it can also cause HWID mismatch Write protect malfunction The Chromebook system cannot be finalized until the write protect function is turned on N...

Страница 34: ...28 Lenovo 10e Chromebook Tablet Hardware Maintenance Manual ...

Страница 35: ...rsion of this manual can be found at https support lenovo com Click Documentation and then follow the on screen instructions to find the manual for your product You might be required to return the defective CRU When return is required 1 return instructions a prepaid shipping label and a container will be included with the replacement CRU and 2 you might be charged for the replacement CRU if Lenovo...

Страница 36: ...lf service CRU Optional service CRU 1 LCD unit No No 2 Front camera with cable No No 3 Microphone board No No 4 System board No No 5 I O bracket No No 6 Rear camera No No 7 LED sponge No No 8 Thermal pad No No 9 Base cover assembly No No 10 Wireless LAN antenna No No 11 Speaker assembly No No 12 Pogo pin cable No No 30 Lenovo 10e Chromebook Tablet Hardware Maintenance Manual ...

Страница 37: ...is used to restore the Microsoft Windows operating system It might not come with the computer and a user might order it from https pcsupport lenovo com lenovorecovery though additional shipping and handling fees might apply Miscellaneous parts Table 3 Miscellaneous parts FRU descriptions Self service CRU Optional service CRU Screw kit Screw M1 6 x L1 5 silver 6 Screw M1 6 x L3 5 black 2 Screw M1 6...

Страница 38: ...32 Lenovo 10e Chromebook Tablet Hardware Maintenance Manual ...

Страница 39: ...etails General guidelines When removing or replacing a FRU ensure that you observe the following general guidelines 1 Do not try to service any computer unless you have been trained and certified An untrained person runs the risk of damaging parts 2 Begin by removing any FRUs that have to be removed before replacing the failing FRU Any such FRUs are listed at the beginning of each FRU replacement ...

Страница 40: ...button together with the end of the volume button and at the same time detach the ac power adapter from the Chromebook 2 Release the power button and the end of the volume button and wait about 10 seconds Note Power supply from the built in battery will resume after you reconnect the Chromebook to the ac power adapter 1010 LCD unit and LCD cable Removal steps of the LCD unit and the LCD cable Note...

Страница 41: ...Chapter 5 Removing or replacing a FRU 35 ...

Страница 42: ...ly and adhere them to the new one Lenovo 10e Chromebook Tablet Contains QCNFA324 Module FCC ID POD QCNFA324 IC 4104A QCNFA324 Manufactured for Lenovo Made in China CAN ICES 3 B NMB 3 B Model Name 82AM PN SL10Y56131 Factory ID HFBITLAND SN P20XXXXX MO YDN0BXXXXXXX MTM XXXXXXXXXX MFG DATE 19 03 27 INPUT 5V 2A eSupport 1 Country label 2 SN label 3 Geo label 4 QR code label 1020 Front camera with cabl...

Страница 43: ...steps of the microphone board Step Screw quantity Color 4 M1 6 1 5 mm flat head nylon coated 2 Silver When installing Ensure that the connector is attached firmly 1040 Microphone board cable For access remove this FRU 1010 LCD unit and LCD cable on page 34 Chapter 5 Removing or replacing a FRU 37 ...

Страница 44: ...rder 1010 LCD unit and LCD cable on page 34 1020 Front camera with cable on page 36 1040 Microphone board cable on page 37 Removal steps of the wireless LAN antenna Unplug the connectors by using the antenna RF connector removal tool or pick the connectors with your fingers and gently unplug them as shown 38 Lenovo 10e Chromebook Tablet Hardware Maintenance Manual ...

Страница 45: ...or on the card 1060 Speaker assembly For access remove these FRUs in order 1010 LCD unit and LCD cable on page 34 1020 Front camera with cable on page 36 1040 Microphone board cable on page 37 1050 Wireless LAN antenna on page 38 Removal steps of the speaker assembly Chapter 5 Removing or replacing a FRU 39 ...

Страница 46: ...ly 1070 Thermal pad For access remove this FRU 1010 LCD unit and LCD cable on page 34 Removal step of the thermal pad 1080 LED sponge For access remove this FRU 1010 LCD unit and LCD cable on page 34 40 Lenovo 10e Chromebook Tablet Hardware Maintenance Manual ...

Страница 47: ...0 LED sponge on page 40 Removal steps of the I O bracket Step Screw quantity Color 1 M1 6 2 mm flat head nylon coated 3 Silver 1100 System board For access remove these FRUs in order 1010 LCD unit and LCD cable on page 34 1070 Thermal pad on page 40 1090 I O bracket on page 41 Chapter 5 Removing or replacing a FRU 41 ...

Страница 48: ...of the system board Step Screw quantity Color 12 M1 6 1 5 mm flat head nylon coated 4 Silver When installing Ensure that the connectors are attached firmly 42 Lenovo 10e Chromebook Tablet Hardware Maintenance Manual ...

Страница 49: ...ntity Color 3 M1 6 3 5 mm flat head nylon coated 2 Black When installing Ensure that the connectors are attached firmly 1120 Rear camera For access remove this FRU 1010 LCD unit and LCD cable on page 34 Removal steps of the rear camera When installing Ensure that the connector is attached firmly Chapter 5 Removing or replacing a FRU 43 ...

Страница 50: ...44 Lenovo 10e Chromebook Tablet Hardware Maintenance Manual ...

Страница 51: ...rs and indicators No Control connector or indicator 1 Speakers 2 Microphones 3 Front camera 4 Power button 5 Volume button 6 Audio connector 7 Power status indicator 8 Power connector USB C connector 9 Pogo interface connector 10 Multi touch screen Copyright Lenovo 2020 45 ...

Страница 52: ...g on the model the Chromebook might come with a Lenovo 10e Chromebook Tablet Keyboard Folio referred to as keyboard folio Attach the keyboard folio to the Chromebook so that you can transform your Chromebook into a portable notebook computer 46 Lenovo 10e Chromebook Tablet Hardware Maintenance Manual ...

Страница 53: ...easily and effectively Go to the previous page Go to the next page Refresh your current page Make the current window full screen Open the task view to see all your open windows Darken the display Brighten the display Mute the speakers Decrease the speaker volume Increase the speaker volume Lock the screen Appendix A Controls connectors and indicators 47 ...

Страница 54: ...ake a screenshot Alt Switch the letter case between the upper case and lower case L Lock the screen Ctrl Alt View all keyboard shortcuts Use the keyboard folio Install the Chromebook in the keyboard folio 48 Lenovo 10e Chromebook Tablet Hardware Maintenance Manual ...

Страница 55: ...Remove the Chromebook from the keyboard folio Appendix A Controls connectors and indicators 49 ...

Страница 56: ...50 Lenovo 10e Chromebook Tablet Hardware Maintenance Manual ...

Страница 57: ...ublication 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 document are not intended for use in implantation or other life support applications where malfunction may result in injury or death to persons The information contained in this document does not affect or change Lenovo...

Страница 58: ...a Landererova 12 811 09 Bratislava Slovakia Trademarks LENOVO and the LENOVO logo are trademarks of Lenovo The terms HDMI is the trademark of HDMI Licensing LLC in the United States and other countries USB C is a trademark of USB Implementers Forum All other trademarks are the property of their respective owners 2020 Lenovo 52 Lenovo 10e Chromebook Tablet Hardware Maintenance Manual ...

Страница 59: ......

Страница 60: ...Part Number SP40G76889 Printed in China 1P P N SP40G76889 ...

Страница 61: ... 1PSP40G76889 ...

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