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ClockworkMod (CWM) Recovery easy install for RK3066 and RK3188 -- TWRP/CWM Flash-Tool and root for RK3288

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How to unbrick Archos 50 Platinum sys_boot format
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DieterHolvoet
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2013/08/19
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2013/08/22 - 14:35
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** UPDATE 16/01/2015: sys_boot.img (https://drive.google.com/file/d/0B8L0UK8zvzi2WVdPX2M5NTc4ZWs/view?usp=sharing)

Here's a small tutorial for people who bricked their phone while formatting the sys_boot partition in CWM Recovery. When you format that partition, nothing works except a screen shows up saying "RESET FOR ENTRY QPST DOWNLOAD". This screen is also known as the Qualcomm Diagnostic Mode.

Requirements:

Follow the steps to restore the sys_boot partition:

1. Connect your phone to a pc using the cable

2. Install the drivers if necessary:

https://dl.dropboxusercontent.com/u/17562266/USB%20Modem%20Driver.rar

3. Open your terminal

4. Type "lsblk" (without the quotes).

You should see a list, showing every connected disk and partition. Look for a partition with a size around 50M. This is the partition we need, so remember the corresponding name under the 'NAME' column. It can be "sdc", "sdd" or "sde" followed by a number.

5. Cd to the directory you placed sys_boot.img in

cd [filename]

6. Type "sudo dd if=/dev/NAME of=sys_boot.img bs=512

Replace NAME with the name you got from lsblk, and press enter.

The output should look something like this: 

3959420000 bytes (3866621 KB) copied, [ time spent], [KB/s]

7. Remove the cable from your device, do a battery pull and try to boot your device

Normally, it should boot correctly. If you formatted the /system partition too, you have to get into recovery mode by holding the upper volume button while booting, until a red screen appears.

 

If you have any questions, or if this doesn't work for you - let me know in the comments.

Thanks a lot to Adonis K. and globula_neagra for the sys_boot image and pointing me in the right direction.

The following users say thank you to DieterHolvoet for this useful post:

globula_neagra, Adonis K., Weltonrussell

Device: Archos 50 Platinum, Rooted

 

If you want to support me, donations are always welcome!

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Weltonrussell
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2014/07/28 - 16:26
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This is really helpful except that the link to the driver [item 2 above] is now dead.  Can anyone help me with a driver link?

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DieterHolvoet
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2014/07/28 - 18:39
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Hi Weltonrussell,

I looked around on my hard drive and on old forum posts/websites, and I finally found and re-uploaded the file you're looking for:

https://dl.dropboxusercontent.com/u/17562266/USB%20Modem%20Driver.rar

Good luck!

Dieter

The following users say thank you to DieterHolvoet for this useful post:

Weltonrussell

Device: Archos 50 Platinum, Rooted

 

If you want to support me, donations are always welcome!

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Weltonrussell
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2014/07/28 - 19:51
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Hi Dieter,  

Many thanks.

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