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A request......regarding OTA update to Android 4.2.2 FW

OP hfaz63

25th March 2014, 08:15 PM   |  #1  
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Hello to all Devs and fans at XDA who see my first post. For years I have watched the community and benefited from the knowledge they shared on the smartphones frontier. But today, I humbly ask for a hand from whoever might be be able to provide me with what I need.Here is situation:

1- I do hate Sony firmwares of Android 4.3 and the new 4.4 firmware because I want to stay LB and I do need to root and mount SYSTEM partition
which are difficult on such firmwares and I simply don't like deodexed flashable roms dear devs here provide.In my opinion Android 4.2.2 FW 14.1.G.2.257 seems to be the best one for me...but how to get this one rooted and stay odexed on LB? here are the steps I took :

2- I was on 4.3 and when i went to 14.1.G.534 my phone lost IMEI and GSM SIGNAL and couldn't OTA to 14.1.G.2.257(much to my surprise the phone downloaded the OTA update but the installation failed, so I flashed 14.1.G.2.257 and then went all the way back to the first firmware of z1 which is rootable: 14.1.G.534

3- I rooted this firmware with Kingo root , updated superSU Pro to the latest version enabled survival mode in its settings and installed recovery but now the OTA updater on the phone detects Android 4.3 FW 14.2.A.0.290 and I have no clue how to make it OTA to 14.1.G.2.257 NOT 14.2.A.0.290. As of now, I am stopped here and wondering if a small flashable zip with my desired OTA update could be provided to solve my problem or any other idea how to have my phone in the desired state...

Your help is highly appreciated
Last edited by hfaz63; 25th March 2014 at 09:20 PM.
26th March 2014, 01:39 AM   |  #2  
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I'm not sure but I believe that not all firmware versions allows for OTA update from 534 to 257. You might have flashed a 534 firmware that only allows for OTA from 534 to 290. Have you tried the firmware from this thread?

If you are already on the firmware in the above thread, it may be the case that the OTA to 257 is just no longer available. You'll have to flash a de-odexed and pre-rooted 257 firmware (e.g. here).
26th March 2014, 09:32 AM   |  #3  
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Thank you for your reply. I am indeed on the firmware you mentioned. If you noticed I had said if Iflashed directly from 290 to 534 I would lose IMEI but my phone detected 257 for OTA update but when it restarted to install, it failed and i was back with no change. If I downgrad from 290 to 257 and then to 534 I will have IMEI and signal back but this time 290 is detected for OTA.Yeah i read the post related to my firmware but I don't need a deoexed rom and I don't know how to redoex it if using that would be my last choice.
26th March 2014, 09:42 AM   |  #4  
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Quote:
Originally Posted by hfaz63

Thank you for your reply. I am indeed on the firmware you mentioned. If you noticed I had said if Iflashed directly from 290 to 534 I would lose IMEI but my phone detected 257 for OTA update but when it restarted to install, it failed and i was back with no change. If I downgrad from 290 to 257 and then to 534 I will have IMEI and signal back but this time 290 is detected for OTA.Yeah i read the post related to my firmware but I don't need a deoexed rom and I don't know how to redoex it if using that would be my last choice.

On NUT thread you'll find firmware 534.
You can flash that one from 4.3 or even 4.4 and you'll preserve IMEI.

Without IMEI you can't update firmware through OTA so, probably, that was the problem.

Now you should be able to update firmware through OTA.

If that fails or OTA offers latest firmware you don't want to use you can try to find flashable firmware 290 but I doubt we have that...

Sent from my C6903 using Tapatalk
26th March 2014, 09:54 AM   |  #5  
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OK i think I know what is going on but could I have a rooted UN-DEODEXED 14.1.G.2.257 on my z1??The method you proposed for upgrading to 257 and keeping root now want's to install 290 on my phone....I wish to install 257 NOT 290
Last edited by hfaz63; 26th March 2014 at 10:01 AM.
27th March 2014, 06:22 AM   |  #6  
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I searched but couldn't find any rooted un-deodexed 257 firmware, and that's why I didn't point you to one in my previous post. I think most of us upgraded via OTA to 257 and kept root, hence there wasn't a need for a developer to create a rooted un-deodexed 257 firmware.
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