This post is about unbricking unbricking your optimus one stuck at fastboot mode started udc_start().
Fastboot mode usually appears when you have bad recovery or something goes wrong while flashing your recovery which leads to broken recovery image. A broken recovery image means you cant reboot your phone into home screen or into recovery your stuck at a black screen showing fastboot mode started udc_start(). So be calm it happens, its just a temporary brick(well my phone was a victim of this because i used to flash recovery for each custom ROMs that i used to install which is dangerous so i ended up bricking my phone & i used the same tutorial which i am explaining now to unbrick it) , yeah! your phone can be reviewed by following below steps, but do it at your own risk.
Requirements/files needed:
1) Your PC and your USB cable for the phone.
2) if USB drivers are not installed properly on PC your phone will not be detected in fastboot mode so download from: B2C (it's from LG). if your USB drivers are installed properly & if your phone is detected as soon as you connect, your phone show will "suspend", "reset" etc etc.. under the command "udc_start()".3) You need android SDK (download from here) .
5) you need a image file so download from: ClockWorkMod or AmonRa Recovery.
Tanks for following my tutorial.
Fastboot mode usually appears when you have bad recovery or something goes wrong while flashing your recovery which leads to broken recovery image. A broken recovery image means you cant reboot your phone into home screen or into recovery your stuck at a black screen showing fastboot mode started udc_start(). So be calm it happens, its just a temporary brick(well my phone was a victim of this because i used to flash recovery for each custom ROMs that i used to install which is dangerous so i ended up bricking my phone & i used the same tutorial which i am explaining now to unbrick it) , yeah! your phone can be reviewed by following below steps, but do it at your own risk.
Requirements/files needed:
1) Your PC and your USB cable for the phone.
2) if USB drivers are not installed properly on PC your phone will not be detected in fastboot mode so download from: B2C (it's from LG). if your USB drivers are installed properly & if your phone is detected as soon as you connect, your phone show will "suspend", "reset" etc etc.. under the command "udc_start()".3) You need android SDK (download from here) .
5) you need a image file so download from: ClockWorkMod or AmonRa Recovery.
How to use it:
1) When your phone is in fastboot mode(black screen with udc_start() n stuff ), plug it in to the USB of your PC. Now if you see the lines "suspend", "reset" etc etc.. under udc_start() it means your phone is detected.
2) Now create a new folder & rename that folder as fastboot, then extract the downloaded sdk file into the fastboot folder
3) Extract the recovery image from the zipfile downloaded from step-5 above (e.g. LGp500-recovery-v12.img). Place the image file in the same folder where fastboot.exe is (usually it'll be in the tools\ folder in the SDK file). For your convenience, rename the img file as recovery.img
3) Now fire up your command prompt(cmd) and direct cd to the directory where fastboot.exe is located by typing the following command :
3) Now fire up your command prompt(cmd) and direct cd to the directory where fastboot.exe is located by typing the following command :
cd C:\Fastboot\android-sdk-windows\tools
4)Then type the following code:
fastboot erase recovery
5) Once you get the confirmation that it was successful, type this code:
fastboot flash recovery recovery.img
if above code wasnt successful type this code:
fastboot flash recovery recovery.img.img
6) Once you get the success confirmation, reboot the phone by typing this code:
fastboot reboot
If the above codes dint work means try out these codes :
cd C:\Fastboot\android-sdk-windows\tools
4) then type this:
fastboot erase boot
5) Once you get the confirmation that it was successful, type this code:
fastboot erase recovery
6) Once you get the confirmation that it was successful, type this code:
fastboot erase system
7) Once you get the confirmation that it was successful, type this code:
fastboot flash recovery recovery.img.img
8) Once you get the confirmation that it was successful, type this code:
fastboot reboot
After this the phone will reboot itself to your home screen, this tutorial is extremely useful & it'll work(well worked for me most times).So all the best !
Note: On some SDK versions, fastboot may not be included. For your convenience, I have attached the fastboot. I have also attached AdbWinApi.dll which might be missing in some SDK files. Place the DLL in the same folder where fastboot.exe is located.
![]() | fastboot.zip - [Click for QR Code] (79.0 KB, 8192 views) |
![]() | AdbWinApi.zip - [Click for QR Code] (46.7 KB, 7105 views) |
Still not working for me....gettting the same message again......
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ReplyDeletePlease help!! after completing all the steps successfuy i am still unable to see the rcovery screen!
ReplyDeleteokay.. after completing all the steps successfully. is it rebooting ??
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