PHONE IS DEAD WON'T COME ON
If the mobile phone does not switch on, it is called a dead mobile.
It can be due to many reasons
1. Water damage
2. Fall down
3. Not used for a long time ( Mostly battery is down)
(1) Check the Battery. It should show 3.7 volts or as written on the battery.
(2) Check the Battery Connector
Check two things (a) Voltage coming or not (b) shorting
Note : If there is shorting then clean the circuit in ultrasonic cleaner (Remove display, camera, etc before putting it in ultrasonic cleaner )
Clean the circuit with a soft brush and make it dry with a hair dryer or ****er.
If the shorting doesn't go it may be due to shorting in an ic,capacitor or circuit. if shorting is in ic u can check it by attaching a battery then press the on-off switch keep the battery for 10-15 seconds. after that remove the battery and check which ic becomes hot. Reball or replace that ic. If shorting is in circuit it must be removed by ultrasonic cleaner
Note - The circuit is made of three layers. if there is shorting in the middle layer it cannot be removed
(3) Check the On/Off switch & voltage at on-off switch
Note - Connect a charger. If charging is shown on display then the problem is with the on/off switch or software problem
(4) Try flashing the mobile.
(5) If flashing cannot be done then there is hardware fault we first dry solder the Flash IC & RAM IC and check in the Software. if flashing cannot be done then we dry solder/reball/replace flash ic & RAM ic.After that dry solder/reball/replace Power IC, Network IC, Crystal, CPU :D:D
thanks for your reply. Now I am able to do bootloader mode n tricolor appears on phone and connect PC with USB. The phone shows ONBL. 1.10.0000, SPL. 1.10.000 then it freezes. I gone through the Rom upgrading guide and did all the possibilities, ie. In the Orefkov method, I typed in mitty window "set 32 1" then press enter, then it shown:
+ SD Controller init
- SD Controller init
+StorageInit
SDInit+++
SDCmd8 Command response time-out. MMC_STAT = 80
SDCmd8 Command response time-out. MMC_STAT = 80
SDCmd8 Command response time-out. MMC_STAT = 80
SDInit - SD ver1.0
SDCmd1 Command response time-out. MMC_STAT = 80
SDCmd1 Command response time-out. MMC_STAT = 80
SDCmd1 Command response time-out. MMC_STAT = 80
SDCmd55 Command response time-out. MMC_STAT = 80
SDCmd55 Command response time-out. MMC_STAT = 80
SDCmd55 Command response time-out. MMC_STAT = 80
CMD55 failed
g_cKeyCardSecurityLevel = FF
Cmd>
Then I typed the command “ls boot.bin” and hold the camera button and press enter. Then the following msg has come
Cmd>ls boot.bin
clean up the image temp buffer at 0x8C100000 Length 0x03A00000
BOOTLOAD_PAGE_TABLE_BASE_C_VIRTUAL= 0x8C080000
Clear image temp buffer done .
MTTYDownloadImage
Not allow operation!
Error : DownloadImage return error (code = 0xFFFFFFFF)
Cmd>
Nothing was happened on the phone. The tricolour still appears.
I run ROM Update Utility (3.12.3.5) and the image version showing blank and after updating it is showing 1.00.000.0. When press the Next button, a progress bar appearing on the phone. After 2% progess, the phone turned off. Also the following message appearing on the PC: ERROR [270]: UPDATE ERROR. The image file is corrupted. Please check your Update Utility.
I don’t know how to solve this problem.. Please help
×
235 views
Usually answered in minutes!
×