Self-Heal
Course Introduction
Self-Heal is an option that helps recover a Dell Latitude system from a No Post, No Power, No Video situation.
Self-Heal Instruction
1. Remove the primary battery and the AC adapter.
2. Disconnect the CMOS battery.
3. Release the flea power. Press and hold the power button down for 10 seconds or leave the system idle for 45 seconds.
4. Make sure the CMOS and primary battery are not plugged into the system.
5. Plug in the AC adapter. The system will auto power-on when the AC adapter inserted.
6. The system will start with a blank screen for a while and will shut down automatically. Watch for the LED lights (power, Wi-Fi, and
HDD). It will turn on.
7. The system will try to restart twice and will boot on the third attempt.
8. Place the CMOS battery and the AC adapter back in the system.
9. If self-heal recovers the failure, update the system with the latest BIOS, and perform ePSA to ensure proper functionality of the
system.
NOTE:
• During installation or removal of any hardware, always ensure all data is backed up properly.
• For instructions on how to remove or replace parts, visit the
.
• Before beginning to work on the computer, follow the
.
Supported Latitude Models
NOTE:
• Before replacing the system board, perform self-heal as a mandatory step.
• Latitude Self-Heal can be avoided when complete system tear-down is required to access the coin-cell battery.
• For the Latitude E7 Series (XX70), BIOS Recovery 2.0 should be performed as the primary step.
• In order to reduce troubleshooting time associated with Self-Heal, there is no mandatory requirement to reassemble
the system. Technicians can initiate Self-Heal even with the system board exposed.
• Do not touch any of the exposed components or the system board to avoid shorting and static.
• If Self-Heal is unable to recover the failure, proceed with replacing the system board.
NOTE:
Front-line Agent Action: Front-line agents must encourage the customer to perform this step before isolating the issue
as a motherboard failure. If the customer is not comfortable performing the Self-Heal procedure, then please document
the dispatch being created in 5GL. Advise the onsite engineers to perform the Self-Heal procedure as one of the
mandatory initial steps. Advise them that if the Self-Heal procedure is unsuccessful, to continue with the regular
troubleshooting before part replacement.
Onsite Engineer Action: The Latitude Self-Heal procedure has to be a mandatory initial step. If the Self-Heal procedure
is unsuccessful, continue with the regular troubleshooting before part replacement. Document Self-Heal results in the
call closure log (Self-Heal Pass or Fail).
ការស្តារ
BIOS
លែប្ងែិញ
ការស្តារ
BIOS
ប្តូែរានរចនាលែប្ងលែប្ម្បីជួសជុល
BIOS
លម
លហប្យមិនអាចែំលណប្រការរានលទ
ប្រសិនលរប្រ៊ូតប្តូែរានខូច។
ការស្តារ
BIOS
មិនអាចែំលណប្រការរានលទក្នុងករណីខូច
EC
ខូច
ME
ឬរញ្ហាទាក់ទងនឹងហាែដែរ។
រូរភារស្តារ
BIOS
រួរដតមានលៅលលប្ផ្តធីសិនដែល
មិនរានអុីនប្រីរលៅលលប្ប្ោយសប្មារ់មុខង្រស្តារ
BIOS
លែប្ងែិញ។
Diagnostics
93
Summary of Contents for Latitude 3300
Page 1: ...Dell Latitude 3300 Service Manual Regulatory Model P95G Regulatory Type P95G001 ...
Page 26: ...3 26 Major components of your system ...
Page 27: ...Major components of your system Major components of your system 27 ...
Page 54: ...3 Press the keyboard until it clicks in place 54 ការលោះលប រងង និងែំលែប ងលប រងងលែប ងែិញ ...
Page 104: ...104 Diagnostics ...
