26
/
43
REPAIR FLOW FOR PHONE DEAD
Phone dead
Upgrade the software can
settle the defect issue?
Check and reinstall
the keypad or replace
the touch panel.
Check battery connector
and battery touch point if
is dropped or dirty?
Check the keypad if stuck
or touch panel do not work
to make the phone “dead”?
Check the CPU if is
rosin joint or damage?
Check the flash if is rosin
joint or damage?
Clean or replace
the battery or
battery connector.
Re-weld or replace
Flash.
Re-weld or replace
CPU.
YES
YES
YES
YES
Upgrade the software
Summary of Contents for STUDIO 5.0 HD LTE
Page 1: ...1 43 BLU STUDIO 5 0 HD Service Manual...
Page 8: ...8 43 Finished Remove the LCD 19...
Page 12: ...12 43 Finished Fasten the 10 screws 19 Install the battery cover 20...
Page 15: ...15 43 Side A layout Side B layout...
Page 17: ...17 43 5 2 Baseband CPU circuit introduction for power supply CPU power supply part...
Page 18: ...18 43 5 3 Introduction for baseband chip CPU signal output part circuit...
Page 22: ...22 43 SKY7775XX POWER AMPLIFIER MODULE FOR CDMA WCDMA HSDPA HSUPA HSPA LTE DAND...
Page 24: ...24 43 MT6323 power manage supply output...
Page 33: ...33 43 Speaker circuit To speaker From power IC Audio detector Audio PA IC...
