[Q] C6906 - Flashing .290 branded to .290 generic

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magwart

Member
Dec 20, 2013
19
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Hello,

I recently bricked my Z1 and just got it back from warranty repaired. It is a C6906 that they upgraded to 4.3 (.290) however it is branded to BELL and I wish to flash the unbranded generic so I don't have as much bloatware/fast updates.

Since I do not wish to brick the device again and go through this again and so I am looking for advice to do this in a way that is guaranteed. With flashtool if I flash "C6906 14.2.A.0.290 Generic CA 1276-7484_R2B" would I have any issues at all? Just load up Flashtool - select the ftf and just use the default settings and plug in the Z1 while holding down the volume button.
 

eclyptos

Senior Member
Jun 14, 2008
3,040
640
Planet Earth
I used the latest Flashtool v0.9.13, connected to PC, let install windows the drivers, selected the Unbranded Stock ftf, wiped all data, appslog, cache, all the rest unchecked and I performed the flash. All fine and the phone working well. I don't know why you had problems or why you bricked the phone but there is no advice to give you because it's simply. So even if all it's clear no guarantee and it's up to you. I don't think is the FTF faulty.
 

magwart

Member
Dec 20, 2013
19
0
I used the latest Flashtool v0.9.13, connected to PC, let install windows the drivers, selected the Unbranded Stock ftf, wiped all data, appslog, cache, all the rest unchecked and I performed the flash. All fine and the phone working well. I don't know why you had problems or why you bricked the phone but there is no advice to give you because it's simply. So even if all it's clear no guarantee and it's up to you. I don't think is the FTF faulty.

This is separate from how I bricked it (using custom rom), I did this previously with a older version and just not on .290 and I am wondering if there is any issues (IMEI etc) doing it .290 to .290, thats all. I just don't want to make a mistake.
 

eclyptos

Senior Member
Jun 14, 2008
3,040
640
Planet Earth
This is separate from how I bricked it (using custom rom), I did this previously with a older version and just not on .290 and I am wondering if there is any issues (IMEI etc) doing it .290 to .290, thats all. I just don't want to make a mistake.

Ok, so you bricked the phone with custon rom, now I understand. In this case there is no any issues flashing .290 unbranded on .290 branded. IMEI is lost only when jumping .257 and downgrade directly to .534. It's more "safe" flash .290 on .290. Go flash now. ;)
 
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magwart

Member
Dec 20, 2013
19
0
Ok, so you bricked the phone with custon rom, now I understand. In this case there is no any issues flashing .290 unbranded on .290 branded. IMEI is lost only when jumping .257 and downgrade directly to .534. It's more "safe" flash .290 on .290. Go flash now. ;)

Thanks. :) I don't suppose there is any working root for 4.3 yet, is there for the C9606?

Edit: Successfully flashed. Thanks again. :)
 
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eclyptos

Senior Member
Jun 14, 2008
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640
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Thanks. :) I don't suppose there is any working root for 4.3 yet, is there for the C9606?

No direct root, like Vroot or 360, for .290 at the moment, just a method to get full root for Locked Bootladers. To do that you have to downgrade, root, install recovery then update to .290 again, a bit longer to get root on your phone, sure this method working for C6902/3 but should work for C6906 too, just check.
 
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akusokuzan

Senior Member
Dec 2, 2009
251
40
Would I be able to go from 290 branded to the new 136 intended without issue? I already bricked one device trying to root and I'm just trying to make sure lol
 

eclyptos

Senior Member
Jun 14, 2008
3,040
640
Planet Earth
Would I be able to go from 290 branded to the new 136 intended without issue? I already bricked one device trying to root and I'm just trying to make sure lol

Probably because when you bricked your phone was the time when some issues was not discovered yet in do that, and this confirm the fact on the thread now is wrote "How not brick your phone" :). BTW, the risk to brick the phone is in downgrading so if you want just to upgrade without Root this way should be more "safe" and you will be able to do it without any issue.
 

akusokuzan

Senior Member
Dec 2, 2009
251
40
Probably because when you bricked your phone was the time when some issues was not discovered yet in do that, and this confirm the fact on the thread now is wrote "How not brick your phone" :). BTW, the risk to brick the phone is in downgrading so if you want just to upgrade without Root this way should be more "safe" and you will be able to do it without any issue.

Lol yeah, when I was trying to update with root, it didn't go so hot. That thread wasn't stickied until after the debacle. Sounds good though, thanks!
 

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    This is separate from how I bricked it (using custom rom), I did this previously with a older version and just not on .290 and I am wondering if there is any issues (IMEI etc) doing it .290 to .290, thats all. I just don't want to make a mistake.

    Ok, so you bricked the phone with custon rom, now I understand. In this case there is no any issues flashing .290 unbranded on .290 branded. IMEI is lost only when jumping .257 and downgrade directly to .534. It's more "safe" flash .290 on .290. Go flash now. ;)