Huawei YU220, Service Manual

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YU220 service manualV1.0
2013-10-18
Huawei secrets, no dispersion without permission
1.5
Restart fix screen
Boot a start to the LCD light up but can't start, HOLD on huawei LOG, or restart,
after a certain time on the LOG is to HOLD on the LOG. First consider the
software bugs, reload the brush (not all) after boot, if not, need to erase all
download experimental boot again. Ruled out after a software problem still on
screen or restart, consider whether the LCD welding problems, or LCD damage
of ontology. Finally parallel consider main power output is normal and
CPU/FLASH, if the power output of OK, consider the CPU/FLASH welding or
damaged.