[Q] Bell C6906 downgrade to 534 and obtain root - Xperia Z1 Q&A, Help & Troubleshooting

The Phone: Bell C6906 LB 14.3.A.0.681
Cant seem to find the right information on this.
When I tried to flash the 534 Rogers firmware I get a bootloop, however there is no generic 534 firmware for the 6906, only 290 and 257 (Generic CA 290 and 257 both flash fine).
Is it possible to flash a 6903 firmware and exclude the baseband in the flash? Or what firmware should I be flashing to get onto 534?

Flash the Rogers FTF .534 for C6906 and exclude Baseband.

eclyptos said:
Flash the Rogers FTF .534 for C6906 and exclude Baseband.
Click to expand...
Click to collapse
Negative. I still get a "SONY" logo bootloop after flashing CA Rogers 14.1.G.1.534. (In flashtool the firmware is recognized for C6909) even though it was download as 6906.
Guess I'm not getting root

khhhhris said:
Negative. I still get a "SONY" logo bootloop after flashing CA Rogers 14.1.G.1.534. (In flashtool the firmware is recognized for C6909) even though it was download as 6906.
Guess I'm not getting root
Click to expand...
Click to collapse
Strange - I was able to go from a generic C6906 to the Rogers 534 FTF and then back to generic. Can you do a SHA-1 hash check on your file? Maybe the file was corrupted during the download.
The file that worked for me had the following signature:
D4A87945BA556ED4195C9EB723550AD4921BCFB6

ksoze said:
Strange - I was able to go from a generic C6906 to the Rogers 534 FTF and then back to generic. Can you do a SHA-1 hash check on your file? Maybe the file was corrupted during the download.
The file that worked for me had the following signature:
D4A87945BA556ED4195C9EB723550AD4921BCFB6
Click to expand...
Click to collapse
SHA1: D4A87945BA556ED4195C9EB723550AD4921BCFB6
MD5: 2AF57A08AC22715510A5446A2F574969
Looks to be identical, unfortunately

https://www.youtube.com/watch?v=1aq9YTlfCgc&index=25&list=PLLVYZ9W70saVW6-oStvWb0gFur7yZHGxN
Firmware carrier doesnt seem to make a difference, i am on bell aswell and i just flashed the files in that.
if mobile data does not work you have to add Bell APN's in Settings>Wireless & networks> Mobile networks> Access Point Names
good luck

I had to flash 543 a few times. eventually it worked. was stuck in a boot loop.

Related

Looking for Singapore Region LTE version of .423 or .244 Tft file....

Hi,
I am from Singapore, i m looking for Singapore region tft to re flash into my XZ.
During .423 update, i have flashed a Spain's region rom due to rooting issue... ever since, i m on Spain region even i tried to update or repair my phone from PCC...
Is there anyway or place that i can download Singapore tft file???
Sent from my ME371MG using xda premium
Flashben said:
Hi,
I am from Singapore, i m looking for Singapore region tft to re flash into my XZ.
During .423 update, i have flashed a Spain's region rom due to rooting issue... ever since, i m on Spain region even i tried to update or repair my phone from PCC...
Is there anyway or place that i can download Singapore tft file???
Sent from my ME371MG using xda premium
Click to expand...
Click to collapse
Two ways to do it.
Either you can flash an old version of Singapore firmware and then upgrade it to the latest via PCC or SUS
Or
Root you existing firmware and use the Singapore SI number and then do a repair in the PCC or SUS
Please note that both ways will make you loose your data. So backup before proceeding.
Alternatively, find an Singapore FTF and flash it over your existing version. That should keep your data and settings in tact.
LiveSquare said:
Two ways to do it.
Either you can flash an old version of Singapore firmware and then upgrade it to the latest via PCC or SUS
Or
Root you existing firmware and use the Singapore SI number and then do a repair in the PCC or SUS
Please note that both ways will make you loose your data. So backup before proceeding.
Alternatively, find an Singapore FTF and flash it over your existing version. That should keep your data and settings in tact.
Click to expand...
Click to collapse
I manage to change the Singapore SI in bulid.proc so i plan to update or repair the phone using PCC in the next version lolx ... I already backup my stuff..
Thanks for the advice.

[Q] C6902 US Which ftf to flash?

Recently purchased a C6902 from Newegg. I rooted it to .257 using the flashtool|vRoot method. If I wanted to downgrade to .534, which version of the ftf should I go for being in the US? Does anyone have the US Version, or does it even matter?
Tenbatsu said:
Recently purchased a C6902 from Newegg. I rooted it to .257 using the flashtool|vRoot method. If I wanted to downgrade to .534, which version of the ftf should I go for being in the US? Does anyone have the US Version, or does it even matter?
Click to expand...
Click to collapse
I'm not sure if it matters, but this should answer your question:
Go to phone and dial *#*#7378423#*#* to bring up the service menu. Tap "Service Info," then "Software info." Match "Customization Version" with the appropriate C6902 firmware from this page: http://forum.xda-developers.com/showthread.php?t=2469191
For example, if your "Customization Version" is 1277-1348_R1A, then flash the C6902 14.1.G.2.257 Commercial/Journalist 1277-1348_R1A firmware.
grdnwng said:
I'm not sure if it matters, but this should answer your question:
Go to phone and dial *#*#7378423#*#* to bring up the service menu. Tap "Service Info," then "Software info." Match "Customization Version" with the appropriate C6902 firmware from this page: http://forum.xda-developers.com/showthread.php?t=2469191
For example, if your "Customization Version" is 1277-1348_R1A, then flash the C6902 14.1.G.2.257 Commercial/Journalist 1277-1348_R1A firmware.
Click to expand...
Click to collapse
That'll do. Thanks for your help.
Tenbatsu said:
Recently purchased a C6902 from Newegg. I rooted it to .257 using the flashtool|vRoot method. If I wanted to downgrade to .534, which version of the ftf should I go for being in the US? Does anyone have the US Version, or does it even matter?
Click to expand...
Click to collapse
you can flash any version, as long as you un-click baseband , so you do not loose it
ekoandrew said:
you can flash any version, as long as you un-click baseband , so you do not loose it
Click to expand...
Click to collapse
so that means it will be okay if I flash a .259 telstra update and just untick the baseband?
brapicoco said:
so that means it will be okay if I flash a .259 telstra update and just untick the baseband?
Click to expand...
Click to collapse
I will untick both baseband and Ta just in case.
But know this, a phone first started with out LTE, flashing a rom with LTE do not enable LTE on a non LTE phone

[Q] Quick question on ftf 534 for Telus (Rooting)

Alright, Just got my xperia Z1 today. Looking to root it. Seems like I need the .534 FTF.
My phone is the C6906 from Telus. The only one with .534 ftf is for Rogers. Does anyone have the generic, the Telus or know if I can use the Rogers ftf to downgrade my phone in order to start rooting it?
Use any .534 for your model to start rooting. It doesn't matter if branded or not, you will upgrade anyway to Pre-Rooted by NUT.

No sim card insterted after flash firmware with simlock.ta

My Z3+ is from Japanese Au carrier (model SOV31). It has been sim unlock with code. I just download latest firmware with XperiaFirm, create FTF file with flashtool with simlock.ta and flash the firmware by flashtool 0.9.19.3 without checking exclude simlock.ta
After flashing, My phone does not recognize any simcard. I try to flash stock, factory release firmware (lollipop 5.0) but it still no result.
Any way to fix this.
Thank you for your kind attention.

Need help!! Xperia sp error

Device: C5306,
OS: 4.12.
Past status: no sim lock and bootloader status: YES,
Current status: sim lock and bootloader status: NO
In Short
I have a rooted device with no sim lock and bootloader status: YES, but after flashing ftf, I got sim lock with bootloader status No
I wanted to update my OS so i downloaded this (12.1.A.1.201_GENERIC ftf from this stock ftf thread). I mistakenly flashed the C5303 ftf on c5603 with flash tool and the flashing process ended with system sin processing error.... .
after doing some search, i found that flashtool version is the reason so i try again with flashtool 0.9.18.6 version and This ftf flashed without any error but on booting the device, My phone get sim lock with Boorloader Status: NO.
Right now, I have no idea of my original customization version,,, I have no backup except a ta backup of my device....
does info like IC, SI, S/n, FCC id on the back of xperia sp can help me to solve this issue.....
Please help
Use Xperiafirm (it should be included with Flashtool) and look for the C5306 firmwares (there are like 4 of them). Use the generic one if none of them seem to be your original one.
feromgar said:
Use Xperiafirm (it should be included with Flashtool) and look for the C5306 firmwares (there are like 4 of them). Use the generic one if none of them seem to be your original one.
Click to expand...
Click to collapse
Thanks for the reply
Flashtool (0.9.25.0) doesn't work for me
I m using Flashtool (0.9.18.6) and Xperiafirm versiom 5.2.7 but Xperiafirm doesn't show Xperia SP in its list.
Update: In a panic, I flashed the PCT branded ftf , which includes the simlock.ta and flashing process gives error after flashing it.. Do you think this is the reason of simlock and Bootloader status No...
Can you help to download the correct ftf for C5306 using xperiaFirm.......
Update: Xperia SP is removed See this
Please help me
Ugh... If Sony removed the phone from their servers, your only hope is looking for a C5306 firmware over the Internet. There was a thread with almost all of them over here but I don't know if those ones are still up.
About the "sim-lock": yeah, the wrong firmware probably messed with that on your phone. Now, I don't have any idea why your BL allowed status changed from YES to NO, though.
feromgar said:
Ugh... If Sony removed the phone from their servers, your only hope is looking for a C5306 firmware over the Internet. There was a thread with almost all of them over here but I don't know if those ones are still up.
About the "sim-lock": yeah, the wrong firmware probably messed with that on your phone. Now, I don't have any idea why your BL allowed status changed from YES to NO, though.
Click to expand...
Click to collapse
Most of the link on that thread are not working
still I managed to get US generic and US customised ftf of C5306 ..
but still no luck
Bigbwolf1 said:
Most of the link on that thread are not working
still I managed to get US generic and US customised ftf of C5306 ..
but still no luck
Click to expand...
Click to collapse
UPDATE: I'm able to find the my device correct customisation
From here
My c5306 belongs to
"C5306 Bell Mobility CA CDF1275-0760" "1274-5300 Bell Mobility CA (Canada)/Black" for 35715705
"FSP_Huashan_BELL_LTE_1275_0760_S1_SW_LIVE_7054_PID1_0002.R4A_12_0_A_1_284.SIN_FILE_SET"
"MS_CDF_1271_0521.R8A.SIN_FILE_SET"
"ELABEL_Huashan_elabel_c5306_row.12_0_A_1_284.SIN_FILE_SET"
"APP_SW_Huashan_GENERIC_1269_3538_S1_SW_LIVE_7054_PID1_0002.12_0_A_1_284.SIN_FILE_SET"
"1274-5300 " is the serial number of my device....
Can you help me to find this ftf ?
Thanks
Falzo said:
Finally a C5306 12.1.A.0.266 ftf:
Google Drive
Mega
Note that it's branded to Bell/Virgin Mobile CA.
Enjoy!
Click to expand...
Click to collapse
@Bigbwolf1, this post has the correct ftf. Only the Google drive link is still up, though.
feromgar said:
@Bigbwolf1, this post has the correct ftf. Only the Google drive link is still up, though.
Click to expand...
Click to collapse
Thanks but still no luck.
Again, My device has Sim lock and Bootloader status: No ... Now its high time to buy new Xperia
Thanks for being awesome

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