How to downgrade to stock Android 9? - Sony Xperia XZ3 Questions & Answers

Hey guys,
So my XZ3 cannot handle the Android 10 anymore, it requires factory resets every 2-3 months, otherwise it gets laggy everywhere and randomly crashing. What is the safest way to downgrade it to stock Android 9 Pie? I haven't unlocked my bootloader as I want my cam to highest quality, so hopefully I won't need to do it now.

I have heard that the UK firmware is pretty stable. Does it matter if I get a firmware from the UK if I live in Macedonia?

No answer?

duckwind said:
No answer?
Click to expand...
Click to collapse
just flash android 9 ftf firmware with newflasher.

Will this save the DRM keys for the camera processing tho?

duckwind said:
Will this save the DRM keys for the camera processing tho?
Click to expand...
Click to collapse
yeah. DON'T unlock bootloader and everything will be fine. Flash stock fw do nothing to DRM.

Thanks, @nh0ckut3y3u. Worked like charm and pretty straightforward. One thing if anyone is looking for doing the same is that you need to extract the .ftf file in a folder.

duckwind said:
謝謝,@nh0ckut3y3u。工作起來很有魅力,而且非常簡單。如果有人想做同樣的事情,一件事是您需要將 .ftf 文件提取到文件夾中。
Click to expand...
Click to collapse

Related

C6906 4.3 ftf?

I see all kinds of FTF ROMs for 6902/03/43 but no signs for 06
Anyone has been able to snatch one?
Poesini said:
I see all kinds of FTF ROMs for 6902/03/43 but no signs for 06
Anyone has been able to snatch one?
Click to expand...
Click to collapse
Check this
Yay! Good thing to hear thanks man...
A little offtopic: These 4.3 fix the problem unlocking the bootloader... So if i want to unlock I can flash 4.3, unlock, flash 4.4 AOSP or CM and custom kernel and everything will be fine?
Poesini said:
Yay! Good thing to hear thanks man...
A little offtopic: These 4.3 fix the problem unlocking the bootloader... So if i want to unlock I can flash 4.3, unlock, flash 4.4 AOSP or CM and custom kernel and everything will be fine?
Click to expand...
Click to collapse
I haven't unlocked bl just yet, but afaik now everything is working if you unlock it.
diego9016 said:
Check this
Click to expand...
Click to collapse
Did it work for you? I want to try it
Just now updated my C6906
bhagiratha said:
Just now updated my C6906
Click to expand...
Click to collapse
Did you get it OTA or did you do it manually from Sony PC Companion?
metal_god69 said:
Did you get it OTA or did you do it manually from Sony PC Companion?
Click to expand...
Click to collapse
I did manual using flash tool. OTA hasn't worked for me since I got the C6906.
Android 4.3
This is the ftf file for C6906 Generic Canada .290, this is my first time creating one so flash at your own risk, however I must say I followed step by step the instructions found here on XDA, it's not as difficult as brain surgery. Got it through PC Companion this morning after previously flashing Generic .257 a month ago.
https://mega.co.nz/#!iY1zxDDA!TlbQ1DjWpjWp8uS48EtQ3w_will6W65Xlw0W5dPIS1g

my questions on the z1

Hi guys, I'm getting a z1 tomorrow
Should I get c6902 or c6903 ? I don't need 4g but I want a device that has many mods/ ROMs. That's all I need.. Second, what is lb and UB ROM? Third I want to install ROM on new device, the steps of installing ROM is something I don't understand.. My experience with grouper nexus 7, unlocked it, flashed it.. But z1, how to do that? Can someone explain basics to me?
bsmstar said:
Hi guys, I'm getting a z1 tomorrow
Should I get c6902 or c6903 ? I don't need 4g but I want a device that has many mods/ ROMs. That's all I need.. Second, what is lb and UB ROM? Third I want to install ROM on new device, the steps of installing ROM is something I don't understand.. My experience with grouper nexus 7, unlocked it, flashed it.. But z1, how to do that? Can someone explain basics to me?
Click to expand...
Click to collapse
- depends. Is your device that you've ordered support LTE? If yes, then you'll get C6903
- LB = Locked boot loader. A state where you can't flash custom kernel
- UB = Unlocked boot loader. A state where you've unlock your boot loader, so you can flash custom kernel.
- which steps?
- there's ROM which can be flashed even your bootloader still locked. So, it depends on what ROM you wanna use.
omegahanggara said:
- depends. Is your device that you've ordered support LTE? If yes, then you'll get C6903
- LB = Locked boot loader. A state where you can't flash custom kernel
- UB = Unlocked boot loader. A state where you've unlock your boot loader, so you can flash custom kernel.
- which steps?
- there's ROM which can be flashed even your bootloader still locked. So, it depends on what ROM you wanna use.
Click to expand...
Click to collapse
OK thanks for replying , so let's see.. How can I flash monxdified on a completely new device? I think the device is c9602 since I don't see a 4g on the package..
What is the best custom for this device? What's new on Sony kitkat ? Can we have it for Christmas eve?
bsmstar said:
OK thanks for replying , so let's see.. How can I flash monxdified on a completely new device? I think the device is c9602 since I don't see a 4g on the package..
What is the best custom for this device? What's new on Sony kitkat ? Can we have it for Christmas eve?
Click to expand...
Click to collapse
1. Backup your TA partition (just in case you want to roll back to 4.2.2, and get back your DRM key)
2. Check for updates using OTA or Sony PC Companion
3. If there's update to 4.3, apply the updates
4. Before we step further, I wanna ask you, do you wanna keep your bootloader unlocked?
Well. We don't know when exactly 4.4 update is available. Let's hope we'll get this in December.
Hi
For me it doesn't matter if BL locked or not, I read there is no problem in that in 4.3 regarding camera issues.. But I have zero knowledge on how to deal with rooting and flashing the z1.. Im not going back to 4.2 for me its either aosp 4.4 or Sony ui 4.3. As I said I have zero knowledge so if you can elaborate more about how to do it that would be highly appreciated
hi
so i got the c6903 now... i cant root it and i dunno why
its running on 4.2.2 .257 fw official
i tried vroot it didnt work and 360 root cant be installed it says chinese only os.. how to do that now?
you have to downgrade to 534 to root
bsmstar said:
hi
so i got the c6903 now... i cant root it and i dunno why
its running on 4.2.2 .257 fw official
i tried vroot it didnt work and 360 root cant be installed it says chinese only os.. how to do that now?
Click to expand...
Click to collapse
There is no better way than follow this steps on Page 2, Post #16 http://forum.xda-developers.com/showthread.php?t=2588331&page=2
No body here was clever at the first time so just read carefully. This is the only way to get the full root on your device.
If this help click on thanks.
Well, I found that out through YouTube.. I downgraded my c6903 to 534 fw and rooted it, installed the recovery dual and flashed ihackers 2.1 , yes I did ta backup but I didn't unlock the bootloader. I dunno what's the benefit of doing so, although I emailed Sony and I got the unlock code on my email as they replied... I'm only missing an app that control the led color of notifications led and Google now since I'm not in the US region.. That used to work fine on 4.2.2 but no worries.. Thanks guys. You really helped me a lot and I think this is a great device, I have been using it since Tuesday. And I rooted and flashed it this morning. One problem is that I dunno how to enter recovery so I flashed the ROM right after I flashed the recovery.. I understand now that there is a flashable zip? Things are much easier with the nexus line
bsmstar said:
I understand now that there is a flashable zip?
Click to expand...
Click to collapse
All the FTF have to be flashed on your device via Flashtool v0.9.13 compatible with your device and they are not zip. Recovery is in zip and all what you flash from recovery is in zip file.
Yeah I did that.. It had 257 fw, I flashed 534 with flashtool then I rooted by vroot, then ta backup with some bat file through computer and USB debugging, then installed recovery by bat file as well, which rebooted to recovery, I did factory reset/wipe, and flashed aroma ihackers 2.1 without custom kernel then switched off and flashed baseband and kernel by flashtool and rebooted, done..
Just like that. And you should be the one without knowledge?
Well, I put my mind to it.. And when I do that I usually succeed... But I still have unanswered questions, like what are the benefits of unlocking bootloader? How can I control led light color for different applications notifications.. I tried light flow and illumination bar, both didn't work.. Lastly I haven't got used to the camera ui as I haven't used it much and I already applied xposed 20 mp mod.. Lastly,, I like to thank you for all your attention and care and everything ... I really appreciated it
as i know the unlockbootloader is the only way to flash custom karnels.
i dont know mutch more then that, just switched from ios so i'm new to this.
I forgot to backup my TA does that make an issue and if, what kind?
sorry for thread steeling
bsmstar said:
But I still have unanswered questions, like what are the benefits of unlocking bootloader?
Click to expand...
Click to collapse
Like @stianly said Unlocking Bootlader is needed to flash custom kernels only.
bsmstar said:
How can I control led light color for different applications notifications.. I tried light flow and illumination bar, both didn't work..
Click to expand...
Click to collapse
I read somewhere on XDA about that. EDIT: Try Gravity Box Xposed
stianly said:
as i know the unlockbootloader is the only way to flash custom karnels.
Click to expand...
Click to collapse
Right.
stianly said:
I forgot to backup my TA does that make an issue and if, what kind?
Click to expand...
Click to collapse
Yes, it's a problem, without TA you lost your DRM keys permanently which are needed to re-lock your bootlader. You also lost the warranty of you device definitely.
yea i know the waranty and drm
but what does the drm keys do i lose some functions?
stianly said:
yea i know the waranty and drm
but what does the drm keys do i lose some functions?
Click to expand...
Click to collapse
Yes, Bionz, X-Reality and probably Bravia Engine or something like that but your phone still working properly. Some users do not notice the difference with or without this features.
Ok I tried gravity box, can't find notifications led settings... Can you be more specific on this? Thanks...
bsmstar said:
Ok I tried gravity box, can't find notifications led settings... Can you be more specific on this? Thanks...
Click to expand...
Click to collapse
Sorry, at the moment I don't have my phone so iI can't check for you but Gravity should have some options for that but maybe it's not the solution, I know it's possible, when I will know more something for your problem I will post.
OK thanks

Flash Stock Sony Firmware on to carrier locked phone

Hey guys,
I have one or two questions I cant seem to find a definitive answer for.
I currently have a Z1 locked to my local O2 network. They still haven't release any updates past 4.2.2.
I was wondering would it be possible to flash a Sony Stock Factory Image so that future OTA updates would come from Sony and not through my carrier?
I was looking at this ROM here. So Root the phone, flash the ROM and then remove root.
Some might say why not root, unlock etc. but the to be honest I have done my fair share of trying different ROM's on different phones, throughout the years and I just love how stable the phone is and how good the battery life is that I just don't want to mess around with it too much.
Dave
You already messing around. That link which you posted is a method to root your phone and if you do not want to root it then is not the right thread. To update your phone to latest FW you have to flash the Unbranded Firmware .136 for your model from HERE
Use flashtool v0.9.13 to do that, wipe everything and you are done. This is for Locked Bootloader and you will also get next Updates when they comes.
eclyptos said:
You already messing around. That link which you posted is a method to root your phone and if you do not want to root it then is not the right thread. To update your phone to latest FW you have to flash the Unbranded Firmware .136 for your model from HERE
Use flashtool v0.9.13 to do that, wipe everything and you are done. This is for Locked Bootloader and you will also get next Updates when they comes.
Click to expand...
Click to collapse
Its as simple as that? I might give it a shot this evening so when I get home.
davkav said:
Its as simple as that? I might give it a shot this evening so when I get home.
Click to expand...
Click to collapse
Yes, it's simple because you just want the latest Firmware only, No Root, No Unlocked Bootlader.
One last question, if I flash the latest UK version which is .290 will I receive OTA or PC Companion updates as soon as .136 is out for the UK version?
davkav said:
One last question, if I flash the latest UK version which is .290 will I receive OTA or PC Companion updates as soon as .136 is out for the UK version?
Click to expand...
Click to collapse
Yes
harfot said:
Yes
Click to expand...
Click to collapse
Brilliant, Thanks!

[Q] Critical Camera Issue 4.4 KK

hi,
my camera stopped working after flashing a 4.4.2 stock based rom.
i am on ub but without Ta backup. The camera doesnt take pictures and cant focus. it was allright before udpate.
i even downgraded to stock 4.2.2 to see if its working but no, it is not
Any help? Or as i understand i lost my cam forever?
-EDIT-!! After playing around a long time at night, it started to work again on .290 ftf
idk what it was and what it was caused by.
But it seems that sony has problems with the 4.4 update in general.
thanks anyway
Edit2 - actually it is only working on 290. O.0 strange! as i upgrade to lower or newer firmware it stopps working.
Has anybody got an idea?
Good for you, I hear someone saying that there still a possibility, without TA, to lose the cam forever.
..and yes, KK have been reported with many bugs but not with the cam actually.
Good luck.
eclyptos said:
Good for you, I hear someone saying that there still a possibility, without TA, to lose the cam forever.
..and yes, KK have been reported with many bugs but not with the cam actually.
Good luck.
Click to expand...
Click to collapse
Well i think i will relock my BL and stay for stock. I hope i will be able to upgrade to 4.4 with camera feature. Because now it is only working on 290. ftf.
What the hell is that. Never happened before to me so strange
Thankx
LLars_PL said:
Well i think i will relock my BL and stay for stock. I hope i will be able to upgrade to 4.4 with camera feature. Because now it is only working on 290. ftf.
What the hell is that. Never happened before to me so strange
Thankx
Click to expand...
Click to collapse
Relock BL without TA do not have sense. It will not work anyway so try to keep .290 for now and soon a fix will come, or try the new KK when it will roll out, with new fixes.
eclyptos said:
Relock BL without TA do not have sense. It will not work anyway so try to keep .290 for now and soon a fix will come, or try the new KK when it will roll out, with new fixes.
Click to expand...
Click to collapse
i made it out- just flash 290. then flash original kit kat ftf and it will work. And keep your BL unlocked do not play with flashtool
LLars_PL said:
And keep your BL unlocked do not play with flashtool
Click to expand...
Click to collapse
Thanks, I thought it was not safe flashtool for play with Bootloader, always use the Original Backup TA App. Good you solved. :good:
eclyptos said:
Thanks, I thought it was not safe flashtool for play with Bootloader, always use the Original Backup TA App. Good you solved. :good:
Click to expand...
Click to collapse
Yes as long as you have a Ta-Backup which i have not, luckily i made it out :good:
Yes as long as you have a Ta-Backup which i have not, luckily i made it out
Click to expand...
Click to collapse
So tell me exactly what did you do to repair camera issue? I'm now on RomAur v6.3 with unlocked bootloader and camera doesn't focus or take pictures... If I understood you correctly I'll have to flash C6903_14.2.A.0.290_Stripped.ftf and than C6903_14.3.A.0.681_Stripped.ftf all without TA(only TA? maybe I'll have to check something else?) using flashtool to made it work again? or do I have to flash original firmware or what?
adamkx7xdesire said:
So tell me exactly what did you do to repair camera issue? I'm now on RomAur v6.3 with unlocked bootloader and camera doesn't focus or take pictures... If I understood you correctly I'll have to flash C6903_14.2.A.0.290_Stripped.ftf and than C6903_14.3.A.0.681_Stripped.ftf all without TA(only TA? maybe I'll have to check something else?) using flashtool to made it work again? or do I have to flash original firmware or what?
Click to expand...
Click to collapse
Well, you missunderstood the Ta thing Did you make a TA-Partition Backup BEFORE unlocking the bootloader? If yes- Just restore it & you are fine.
If not, thats what you have to do/what i did to make it work.
First of all NOT STRIPPED ftf`s becasue it is only the kernel as far as i know. You have to download the whole original rom which is about 1gb.
+Edit. Do not exclude any options in Flashtool like Ta, kernel or anything else !!!! Just choose your ftf and flash!
First flash original 290. FTF with your branding (for me it was vodafone)
The camera should work there. If yes continue.
Flash original 681. ftf with your branding if possible.
The cam should work there too. If yes continue.
Now you are good to go, put your custom rom on SD Card-
Flash custom kit kat kernel/or stock with recovery
Boot into CWM and flash your Rom. Your Cam should work.
LG
LLars_PL said:
Well, you missunderstood the Ta thing Did you make a TA-Partition Backup BEFORE unlocking the bootloader? If yes- Just restore it & you are fine.
If not, thats what you have to do/what i did to make it work.
First of all NOT STRIPPED ftf`s becasue it is only the kernel as far as i know. You have to download the whole original rom which is about 1gb.
+Edit. Do not exclude any options in Flashtool like Ta, kernel or anything else !!!! Just choose your ftf and flash!
First flash original 290. FTF with your branding (for me it was vodafone)
The camera should work there. If yes continue.
Flash original 681. ftf with your branding if possible.
The cam should work there too. If yes continue.
Now you are good to go, put your custom rom on SD Card-
Flash custom kit kat kernel/or stock with recovery
Boot into CWM and flash your Rom. Your Cam should work.
LG
Click to expand...
Click to collapse
that's odd.... but I've flashed Xperia Z1 C6903 14.3.A.0.681 Commercial&Journalist w/o TA (before you told me that I should't exclude anthing) than I find out that the camera works and than I decided to flash DooMKernl v11 and RomAur 6.3 without any other steps and everything is working ok so far...
adamkx7xdesire said:
that's odd.... but I've flashed Xperia Z1 C6903 14.3.A.0.681 Commercial&Journalist w/o TA (before you told me that I should't exclude anthing) than I find out that the camera works and than I decided to flash DooMKernl v11 and RomAur 6.3 without any other steps and everything is working ok so far...
Click to expand...
Click to collapse
Well nice,but only because you were able to take pictures and your camera wasn`t that broken as mine was probably
LG
LLars_PL said:
i made it out- just flash 290. then flash original kit kat ftf and it will work. And keep your BL unlocked do not play with flashtool
Click to expand...
Click to collapse
I think that I have the exact same problem (no autofocus, no picture/video, no TA backup and unlocked bootloader).
I know that there was camera issues with unlocked bootloader that was fixed by Sony at some point (maybe the .290 ?), it can be an explanation...
If I understand correctly I need to flash .290 ftf with flashtool, then kit kat still with flashtool ?
Will I still have a rooted phone after that ?
I'm glad I finally found someone with the same problem, and someone that managed to solve it !
Swatch_n7 said:
I think that I have the exact same problem (no autofocus, no picture/video, no TA backup and unlocked bootloader).
I know that there was camera issues with unlocked bootloader that was fixed by Sony at some point (maybe the .290 ?), it can be an explanation...
If I understand correctly I need to flash .290 ftf with flashtool, then kit kat still with flashtool ?
Will I still have a rooted phone after that ?
I'm glad I finally found someone with the same problem, and someone that managed to solve it !
Click to expand...
Click to collapse
Skip .290 and upgrade to KK directly. To keep Root you have to follow [NUT] instructions on his thread.
eclyptos said:
Skip .290 and upgrade to KK directly. To keep Root you have to follow [NUT] instructions on his thread.
Click to expand...
Click to collapse
Ho but I am already on Kit Kat, and like LLars_PL I have camera issues. So I was wondering if I need to downgrade to .290 then reupgrade to KK, and if I'll still have a rooted handset, with working camera (JB or KK, as long as it's rooted with the camera working...)
Thanks anyway !
Edit : just saw that in [NUT] thread :
Camera problems?
You have 3 things to try to fix it, try them one at a time:
Clear dalvik-cache only;
Clear the camera app settings;
Do a factory reset in TWRP or PhilZ (this should keep your internal storage safe);
flash the ROM package again;
boot until you can test the camera;
If it works go back to recovery to restore a backup of data.
Click to expand...
Click to collapse
I'll try as soon as I can.
Swatch_n7 said:
Ho but I am already on Kit Kat, and like LLars_PL I have camera issues. So I was wondering if I need to downgrade to .290 then reupgrade to KK, and if I'll still have a rooted handset, with working camera (JB or KK, as long as it's rooted with the camera working...)
Thanks anyway !
Click to expand...
Click to collapse
In this case I think is better to start from scratch as the downgrade is recommended with Full Wipe. Then you should downgrade to .534, Root it and Upgrade with another Full Wipe to KK. Clean installation should fix the problem.
eclyptos said:
In this case I think is better to start from scratch as the downgrade is recommended with Full Wipe. Then you should downgrade to .534, Root it and Upgrade with another Full Wipe to KK. Clean installation should fix the problem.
Click to expand...
Click to collapse
Thank you !
I'll wait because the solution posted by LLars_PL seems a little less brutal, but if that or [NUT]'s solution doesn't work, I'll certainlly do that.
Swatch_n7 said:
Thank you !
I'll wait because the solution posted by LLars_PL seems a little less brutal, but if that or [NUT]'s solution doesn't work, I'll certainlly do that.
Click to expand...
Click to collapse
Hehe yeah, the downgrade to 290.was needed for me.
eclyptos said:
In this case I think is better to start from scratch as the downgrade is recommended with Full Wipe. Then you should downgrade to .534, Root it and Upgrade with another Full Wipe to KK. Clean installation should fix the problem.
Click to expand...
Click to collapse
Downgrade to 534. Did not work for me
You dont need to root, just do it with 290.flash a original Kit kat ftf over 290.and then just Flash a Kit kat Kernel with cwm - Flash your custom Rom with root already
Wysłane z mojego C6903 przy użyciu Tapatalka
My wife has a completely stock (with original Sony ROM), installed the OTA to 4.4.2 and now the camera doesn't work.
Her phone is completely unmodified as it came of the box, sounds like I might have unlock it and install a custom ROM to fix what I can only assume is a bug with Sony's firmware update.
I suppose I should try contacting Sony support first, but phone/online support is usally mostly useless.
I've flashed the original 14.3.A.0.757 and now my camera is working again
Of course I lost the root (and the recovery ?!) so I need to sort this out now.
I've found that i have a weird problem with my Camera, the sound look like in mono when i listen to the sound, i've tried another app that just record sound and it's perfect, that make this only with the camera, any idea?

[Q] Unable to downgrade to .534 after mainboard change!

I have rooted my Z1 many times without problem, first downgraded to .534, root with Bin4ry's root tool, then flash the .zip file from recovery and flash stripped .ftf with FlashTool.
By rooting this way I can keep my bootloader locked.
A couple of weeks ago I had to send my phone for repairs when the call speaker gave up and they changed the mainboard (new IMEI).
After this I can not downgrade to .534 anymore! It will stuck at a bootloop, with only the Sony logo showing. Downgrading to .257 (the version after .534) is no problem though.
I have tried many different .534 tft-files, including NUT's.
Any ideas? Could this new mainboard be incompatible with the oldest firmwares? Sounds unlikely to me.
Thanks!
dape16 said:
I have rooted my Z1 many times without problem, first downgraded to .534, root with Bin4ry's root tool, then flash the .zip file from recovery and flash stripped .ftf with FlashTool.
By rooting this way I can keep my bootloader locked.
A couple of weeks ago I had to send my phone for repairs when the call speaker gave up and they changed the mainboard (new IMEI).
After this I can not downgrade to .534 anymore! It will stuck at a bootloop, with only the Sony logo showing. Downgrading to .257 (the version after .534) is no problem though.
I have tried many different .534 tft-files, including NUT's.
Any ideas? Could this new mainboard be incompatible with the oldest firmwares? Sounds unlikely to me.
Thanks!
Click to expand...
Click to collapse
If it's incompatible with 534 then i'd be surprised, my guess is that it's a dodgy download and you should re-download the FTF file or an alternative and make sure it's the only thing that your computer is doing at the time, even check the MD5 checksum if it's available.
Are you flashing the full FTF file when downgrading and allowing for a wipe?
Only problem i've had when downgrading is losing the IMEI but after you've rooted , installed a custom recovery and installed a custom rom that'll come back anyway.
dladz said:
If it's incompatible with 534 then i'd be surprised, my guess is that it's a dodgy download and you should re-download the FTF file or an alternative and make sure it's the only thing that your computer is doing at the time, even check the MD5 checksum if it's available.
Are you flashing the full FTF file when downgrading and allowing for a wipe?
Only problem i've had when downgrading is losing the IMEI but after you've rooted , installed a custom recovery and installed a custom rom that'll come back anyway.
Click to expand...
Click to collapse
Thanks, yes I have tried with 5 different .534 ftf-files, all of them resulting in this bootloop. I am doing a full flash with wipe. Downgrading to .257 is working fine though, but then I cant root.
I am running out of ideas
dape16 said:
Thanks, yes I have tried with 5 different .534 ftf-files, all of them resulting in this bootloop. I am doing a full flash with wipe. Downgrading to .257 is working fine though, but then I cant root.
I am running out of ideas
Click to expand...
Click to collapse
Are you branded? What model is the phone C6903? C6902?
don't forget the obvious stones
dladz said:
Are you branded? What model is the phone C6903? C6902?
don't forget the obvious stones
Click to expand...
Click to collapse
It's not branded. No SIM-lock, Generic_NCB customization. C6903.
Now I have tried with older versions of FlashTool and I tried other USB-ports too, but no success. Newer firmwares then .534 flashes just fine.
dape16 said:
It's not branded. No SIM-lock, Generic_NCB customization. C6903.
Now I have tried with older versions of FlashTool and I tried other USB-ports too, but no success. Newer firmwares then .534 flashes just fine.
Click to expand...
Click to collapse
Which version of flashtool are you using currently? I've found that some firmwares just don't like the older flashtools.
What about different USB cables? Shouldn't make any difference but I thought I'd ask. I find it odd the way it'll work for newer but not older firmwares, perhaps someone else should chime in with an idea.
I'm all out, as this isn't something i've come across and everything i'd try myself i've told you.
dladz said:
Which version of flashtool are you using currently? I've found that some firmwares just don't like the older flashtools.
What about different USB cables? Shouldn't make any difference but I thought I'd ask. I find it odd the way it'll work for newer but not older firmwares, perhaps someone else should chime in with an idea.
I'm all out, as this isn't something i've come across and everything i'd try myself i've told you.
Click to expand...
Click to collapse
Thanks for your help.
Now I have tried with another computer and another USB-cable, and also tried to flash the older .526 and .518 firmwares. Tried FlashTool 0.9.1.6 and .5 and .4.
Same result.
Seems very strange that this new mainboard should not be compatible with these firmwares?
dape16 said:
Thanks for your help.
Now I have tried with another computer and another USB-cable, and also tried to flash the older .526 and .518 firmwares. Tried FlashTool 0.9.1.6 and .5 and .4.
Same result.
Seems very strange that this new mainboard should not be compatible with these firmwares?
Click to expand...
Click to collapse
It does seem strange and i'm pretty much out of ideas myself for you m8. Mad one that.
dladz said:
It does seem strange and i'm pretty much out of ideas myself for you m8. Mad one that.
Click to expand...
Click to collapse
Thanks anyway, I hope somebody else has an idea
dape16 said:
Thanks anyway, I hope somebody else has an idea
Click to expand...
Click to collapse
click thanks dude,
Hope you work it out
Just had a thought, can't you now root later firmwares?
dladz said:
click thanks dude,
Hope you work it out
Just had a thought, can't you now root later firmwares?
Click to expand...
Click to collapse
I dont think it is possible to root any firmware later then .534? Not without unlocking bootloader?
dape16 said:
I dont think it is possible to root any firmware later then .534? Not without unlocking bootloader?
Click to expand...
Click to collapse
yes it is, any 4.2 FW can be rooted
Its just that 534 can be done using [NUT]s installation of dual recovery
gregbradley said:
yes it is, any 4.2 FW can be rooted
Its just that 534 can be done using [NUT]s installation of dual recovery
Click to expand...
Click to collapse
Thanks, but I have tried both vroot and Bin4ry's root tool on .257. Didn't work. Is there any other method for rooting?
Edit: Sorry, didn't see the link in your signature, will try that.
dape16 said:
Thanks, but I have tried both vroot and Bin4ry's root tool on .257. Didn't work. Is there any other method for rooting?
Edit: Sorry, didn't see the link in your signature, will try that.
Click to expand...
Click to collapse
DO NOT USE VROOT!!!!
It send your IMEI number to an IP address in china..
I cant believe people still do not know this
gregbradley said:
DO NOT USE VROOT!!!!
It send your IMEI number to an IP address in china..
I cant believe people still do not know this
Click to expand...
Click to collapse
Well, I tried vroot because it is in the first posts in the "Ultimate Xperia Z1 Guide" sticky thread.
Since I have always used Bin4ry's tool, I guess I have not noticed any thread about vroot being dangerous.
gregbradley said:
yes it is, any 4.2 FW can be rooted
Its just that 534 can be done using [NUT]s installation of dual recovery
Click to expand...
Click to collapse
Right now I have .257 firmware flashed which is a 4.2.2.
I have tried to root with Bin4ry, vroot, Kingo, and [NUT]s recovery, but it is not possible.
Everywhere I look people say that it is a must to downgrade to .534 when rooting with a locked bootloader.
What have I missed?
Thanks,
257 was the first one that closed that exploit, you have to go back further.
I know you say 534 does not flash for you, but what error does flashtool give?
gregbradley said:
257 was the first one that closed that exploit, you have to go back further.
I know you say 534 does not flash for you, but what error does flashtool give?
Click to expand...
Click to collapse
Thank you, I misunderstood an thought .257 was rootable too.
No error in Flashtool, flashes fine but is stuck on bootloop with Sony logo.
Tried .518, .526 and .534
make sure you do not exclude any part of the FTF and wipe everything,
Can you get a log from the phone?
Make sure you backup and clean your sdcard (So there is no trace of recovery files on there)
gregbradley said:
make sure you do not exclude any part of the FTF and wipe everything,
Can you get a log from the phone?
Make sure you backup and clean your sdcard (So there is no trace of recovery files on there)
Click to expand...
Click to collapse
I have cleaned the internal sdcard and tried without external sdcard and simcard.
Don't think it is possible to get a log file from the phone while in bootloop?
If my new mainboard is incompatible with .534 and older, I guess other users would have the same problem?

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