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(G300+) unlock bootloader - BRICK

9 posts in this topic

Posted · Report post

Hi guys

I have a G300+ which I attempted to root to install a custom rom. I followed the directions on http://huaweig300.com and managed to get to http://huaweig300.com/huawei-g300-install-a-custom-jelly-bean-ics-rom-from-scratch/re-root-unlock-bootloader-install-clockworkmod-recovery/ before bricking my phone. The brick occurred after running "BootloaderG300.exe".

It appears I have exactly the same issue as this guy: http://www.modaco.com/topic/362789-bricked-my-phone-will-not-boot-whatsoever/

Same symptoms and everything.

I would like to confirm, is the G300+ actually supported by this unlock bootloader method? If not, what can we use?

Thanks for your help

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Posted · Report post

Does it turn on at all? Also I would of used the official way to unlock the boot loader. Did you use the right Bootloader.exe because there is two of them one for baseband 2030 and 19808.

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Posted · Report post

There's no bootloader.exe for 109808 because on GB and "old baseband" bootloader is not locked... Is g300+ same as g300?

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Posted · Report post

The difference between the G300 and the G300+ is that the G300+ supports more frequencies (HSPA 850/900/2100, GSM 850/900/1800/1900)

That's the only difference I'm aware of.

I upgraded to 2030 baseband before attempting to unlock bootloader. I used the file found at http://huaweimobile.com.au/support/mobile-phones under G300+

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Posted · Report post

Have you tried plugging in the phone, without the battery?

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Posted · Report post

Did you just get the firmware file from that Aussie site? Did the phone work after that? are you in Aussie? is it an Aussie phone? Basebands and bootloaders are complex things and are coded only for one phone. I would get the correct firmware from your phone provider, put the dload file on your sd card, plug the phone in with the battery out and try start it using the volume down and power combo (I think, it may be volume up or volume up and down at the same time.)

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Posted (edited) · Report post

You should 

 

Hi guys

I have a G300+ which I attempted to root to install a custom rom. I followed the directions on http://huaweig300.com and managed to get to http://huaweig300.com/huawei-g300-install-a-custom-jelly-bean-ics-rom-from-scratch/re-root-unlock-bootloader-install-clockworkmod-recovery/ before bricking my phone. The brick occurred after running "BootloaderG300.exe".

It appears I have exactly the same issue as this guy: http://www.modaco.com/topic/362789-bricked-my-phone-will-not-boot-whatsoever/
Same symptoms and everything.

I would like to confirm, is the G300+ actually supported by this unlock bootloader method? If not, what can we use?


Thanks for your help

 

You should attempt to unlock bootloader of your phone by using this method here - link , code is generated for free, then only procedure from cmd window is left.

Edited by Cheezypig
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Posted · Report post

Have you tried plugging in the phone, without the battery?

usb connect as qualcomm hs-usb qdloader 9008

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Posted · Report post

usb connect as qualcomm hs-usb qdloader 9008

 

Huh?!?  :blink:

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