[Q] downgrade phone software while keeping the baseband version the same - Xperia Play Q&A, Help & Troubleshooting

hello all
this may seem like i noob question but at the end of the day we where all noobs and we all learn at different rates so bear with me
i have recently flashed stock sony erricson xperia play software on my phone (version 4.0.2.a.0.62) in an attempt to update the baseband version to .64. all this went well and the phone runs fine. but i have a problem i cant root the mentioned software so my only option is to downgrade the software to a rootable version. this leads to the question at hand
will downgrading the software version also downgrade the baseband version. i really want to keep the .64 baseband so i can install android 4.0.3 so is there anyway of downgrading the software but keeping the baseband version the same.

Tick the "Exclude Baseband" box in FlashTool

Related

[Q] Can't find sim card

So I rooted my phone using this
http://forum.xda-developers.com/showthread.php?t=1130639
But I keep getting errors and now it wont even find my sim card and really unsure what to do.
Scottish Husky said:
So I rooted my phone using this
http://forum.xda-developers.com/showthread.php?t=1130639
But I keep getting errors and now it wont even find my sim card and really unsure what to do.
Click to expand...
Click to collapse
Take a look at this link, I helped out another fellow xda member in the same spot as you. His phone wouldn't detect hos simcard after rooting the same way you did. It might be a baseband issue cuz the rooting image is a bit old (afaik the first FW build for our play).
Just follow the step by step guide and you should soon be enjoying the newest FW rooted.
http://forum.xda-developers.com/showpost.php?p=17747422&postcount=45
Link to flashtool. Make sure you use the beta version (0.2.9.1) wich is the one that supports our play.
http://forum.xda-developers.com/showthread.php?t=920746
Small guide on how to use flashtool:
http://forum.xda-developers.com/showpost.php?p=17804320&postcount=2
Regards Dousan...
Check your BaseBand version under settings-->About Phone (If it is unknown or blank), u need to fresh flash your PLAY with a clean ROM (Suggest Generic 2.3.2 UK).
Check your SIM again and the BaseBand.
If u need to ROOT your PLAY, just use GingerBreak 1.2 when still in 2.3.2. U can use RootChecker to check if it is successfully rooted. Update to the latest version OTA by WiFi.
dcoloane said:
Check your BaseBand version under settings-->About Phone (If it is unknown or blank), u need to fresh flash your PLAY with a clean ROM (Suggest Generic 2.3.2 UK).
Check your SIM again and the BaseBand.
If u need to ROOT your PLAY, just use GingerBreak 1.2 when still in 2.3.2. U can use RootChecker to check if it is successfully rooted. Update to the latest version OTA by WiFi.
Click to expand...
Click to collapse
This is also a way to go about it . Just one thing to ad: You'll need to relock the bootloader before updating OTA or yuo'll brick your phone
Afaik the newest FW is not out via OTA yet (4.0.1.0.283 - 2.3.4), it's the first one with xLoud (4.0.A.2.368 - 2.3.3).
Regards Dousan...

[Q] How to update software ???

Hello!
I need to know all the official possible ways available to update the software of my PLAY. Also do mention the best method.
Right now when I go to settings>About Phone> it says that I have the Android version of 2.3.3
I believe there have been 2 software updates since then (correct me if I am wrong).
What do you people think was there any progress in the updates or were they just related to back-end programming?
Thanks.
Im sure 2.3.3 is the latest official version.
Have you connected your phone to your pc and tried that way?
Got my phone today and i have the same version as you, i too get the "your phone is upto date" message.
HTH
Havn't checked through the pc as for yet, but there has to be another update because in this version I cant rotate the menu screen into landscape which I believe was a feature in the latest update.
Which version of the Play do you have?
R800x is the US, and we're stuck at 2.3.3 right now
I think the rest (minus 800at, i haven't heard about them, yet) is at 2.3.3/2.3.4...
My version is r800i. I m not in US actually but in the Middle East. I m pretty sure there is an update bt I m afraid to look for it as it might start updating on its own.
I just need to know all the methods and the best one, and also what data should I back up before updating.
I had an R800a that I flashed to an R800i and in both cases the firmware was still at 2.3.3
Hey what is this flashing stuff, I mean I m new to android and have been using play for over a month, but still don't know what the heck is this android. Please explain this to me. Secondly I also noticed that the updates are country dependent as well like if I m in Norway I have an update version different than that of UK which itself is different than that of Middle East, am I right about this?
And what is the difference between r800x and r800a and r800i and others if there are any?
Sent from my R800i using XDA App

Blue Xperia Play 4g, need baseband..having problems

Hey guys, I was hoping I would'nt have to do this but i'm at a loss now.
I own the blue xperia play 4g phone and currently using it with straight talk service with their unlocked sim. Everything was fine until I decided to start trying out custom roms.
No matter what I tried, I could get them to load, work , function ect BUT I had weird issues where people could not hear me for the 1st call, but if I called them right back they could. It just seemed to be random and I could'nt put my finger on it.
So I flashed back to the stock 2.3.3 R800AT firmware, and then updated thru their Sony patch they made me do on the phone...and everything was fine again.
Well I got adventurous again, and UNLOCKED my bootloader. So NOW....after doing custom roms, I CANNOT reload my old R800at 2.3.3 firmware and get the OFFICIAL update from them. So i'm stuck with an upgradeable working 2.3.3 (this is the 2.3.3 before the update they put out, I know it does'nt go to 2.3.4. but its some kinda 2.3.3 update) with NO further updates.
So after tons of research i'm HOPING its the baseband I need ??? I dont know what else to do. Only other option is if some kind soul wants to send me over their AT&T r800AT 2.3.3 UPDATED firmware I'll just go back to stock but i'd prefer to keep using my custom roms!!!
***maybe if someone who has the blue xperia play 4g version, would post the "baseband" version they see on their phone, even that would help!!!***
Any help would be great and more than appreciated.
God bless and thanks guys,
Jason
jaygrae said:
Hey guys, I was hoping I would'nt have to do this but i'm at a loss now.
I own the blue xperia play 4g phone and currently using it with straight talk service with their unlocked sim. Everything was fine until I decided to start trying out custom roms.
No matter what I tried, I could get them to load, work , function ect BUT I had weird issues where people could not hear me for the 1st call, but if I called them right back they could. It just seemed to be random and I could'nt put my finger on it.
So I flashed back to the stock 2.3.3 R800AT firmware, and then updated thru their Sony patch they made me do on the phone...and everything was fine again.
Well I got adventurous again, and UNLOCKED my bootloader. So NOW....after doing custom roms, I CANNOT reload my old R800at 2.3.3 firmware and get the OFFICIAL update from them. So i'm stuck with an upgradeable working 2.3.3 (this is the 2.3.3 before the update they put out, I know it does'nt go to 2.3.4. but its some kinda 2.3.3 update) with NO further updates.
So after tons of research i'm HOPING its the baseband I need ??? I dont know what else to do. Only other option is if some kind soul wants to send me over their AT&T r800AT 2.3.3 UPDATED firmware I'll just go back to stock but i'd prefer to keep using my custom roms!!!
***maybe if someone who has the blue xperia play 4g version, would post the "baseband" version they see on their phone, even that would help!!!***
Any help would be great and more than appreciated.
God bless and thanks guys,
Jason
Click to expand...
Click to collapse
Oh my friend, you are in the same boat as me. xD
All you need to do is get the stock 2.3.3 AT&T firmware, But you can also use r800i firmwares and update to 2.3.4 with the latest firmware.
Theres a thread somewhere containing the firmware, if not you can find it on google.
(Which is what im doing right now with straight talk) only negative thing I see is so far H instead of H+.
Dito on the baseband, the flashtool links with FTF 2.3.3 is down my phone is softbricked though
Cetus90 said:
Dito on the baseband, the flashtool links with FTF 2.3.3 is down my phone is softbricked though
Click to expand...
Click to collapse
If alejandrissimo unlocked your phone you should have OTA updates. If you unlocked it with another method then im not sure what to tell you, gotta find the updated FTF files.
Guys good news here
I was correct in thinking it was the baseband on our phone that is causing the problem. I think its due to the fact we are 4g rather than 3g.
So how did i fix this problem??? Simple. I was able to use the doomkernel v13 (any seem to work), actually install the rom of choice, (i'm using Jokawild 2.5), and then downloaded/installed baseband file -36.
I also installed the -36 libs package that was somewhere posted on here its the new .386 version.
Everything is working now and i'm happy. Going to save the baseband/lib files so i have them forever incase something happens.
Take care, God bless and thank you for your input/time. I could'nt go another day with them stock at&t roms!!!!
jaygrae said:
Guys good news here
I was correct in thinking it was the baseband on our phone that is causing the problem. I think its due to the fact we are 4g rather than 3g.
So how did i fix this problem??? Simple. I was able to use the doomkernel v13 (any seem to work), actually install the rom of choice, (i'm using Jokawild 2.5), and then downloaded/installed baseband file -36.
I also installed the -36 libs package that was somewhere posted on here its the new .386 version.
Everything is working now and i'm happy. Going to save the baseband/lib files so i have them forever incase something happens.
Take care, God bless and thank you for your input/time. I could'nt go another day with them stock at&t roms!!!!
Click to expand...
Click to collapse
Hello hello, I need your help. I've got the generic North Am. 2.3.4 (.42) and I'm having this problem. I've got an unlocked bootloader and I want to install the baseband file. Can I do that with a generic rom? What is the process for installing a baseband file and libs package? Where can I get these files? Thanks.
SonyFanboy said:
Hello hello, I need your help. I've got the generic North Am. 2.3.4 (.42) and I'm having this problem. I've got an unlocked bootloader and I want to install the baseband file. Can I do that with a generic rom? What is the process for installing a baseband file and libs package? Where can I get these files? Thanks.
Click to expand...
Click to collapse
I think I have the same or a similar problem. I frequently encounter a similar situation where it could take 10+ seconds before the other person can hear me speak, but I can hear them the whole time. By now most of my friends and family know how to deal with it, but before they would just hang up on me. Then they could hear me if I called them. If I reboot the phone, it fixes it for a while, but then it comes back after some time and takes another reboot to resolve.
My phone is a SIM unlocked, bootloader locked Xperia Play R800a model from last year's Google I/O. It uses the same frequencies as AT&T for 3G and 2G and I'm using it on AT&T as well. I have the Generic North America 4.0.2.A.0.42 (Android 2.3.4) ROM installed, and it has Baseband 8x55A-AAABQMAZM-203028D-56.
I found a separate thread with the -36 Baseband here:
http://forum.xda-developers.com/showthread.php?t=1469473
I'm considering flashing this over my current -56 Baseband to see if it improves the situation. As I recall, I never had this sort of trouble when I first got the phone. It's really only been since I updated to Firmware .42 that I've had these problems. Is it safe to do this?
Thanks!
MechaBouncer said:
I think I have the same or a similar problem. I frequently encounter a similar situation where it could take 10+ seconds before the other person can hear me speak, but I can hear them the whole time. By now most of my friends and family know how to deal with it, but before they would just hang up on me. Then they could hear me if I called them. If I reboot the phone, it fixes it for a while, but then it comes back after some time and takes another reboot to resolve.
My phone is a SIM unlocked, bootloader locked Xperia Play R800a model from last year's Google I/O. It uses the same frequencies as AT&T for 3G and 2G and I'm using it on AT&T as well. I have the Generic North America 4.0.2.A.0.42 (Android 2.3.4) ROM installed, and it has Baseband 8x55A-AAABQMAZM-203028D-56.
I found a separate thread with the -36 Baseband here:
http://forum.xda-developers.com/showthread.php?t=1469473
I'm considering flashing this over my current -56 Baseband to see if it improves the situation. As I recall, I never had this sort of trouble when I first got the phone. It's really only been since I updated to Firmware .42 that I've had these problems. Is it safe to do this?
Thanks!
Click to expand...
Click to collapse
I wanted to add that on Friday I installed the -36 baseband with mine and I'm getting 4G+ (I hit 12MBs at mobilespeedtest.com). And my calls have stopped being cut off.
SonyFanboy said:
I wanted to add that on Friday I installed the -36 baseband with mine and I'm getting 4G+ (I hit 12MBs at mobilespeedtest.com). And my calls have stopped being cut off.
Click to expand...
Click to collapse
Awesome! That's also funny because I also installed the -36 baseband last night. So far, so good. Calls and data both work as normal. I'll need to do more testing to be sure whether it fixed my problem or not.
Now did you just install the baseband or did you also flash or push the libs to it as well? All I did was use Flashtool to flash the baseband .ftf file.

[Q] Need safe upgrade path from CleanROM 5.0.0

I have an unlocked AT&T Note II that I purchased from Swappa, so I did not do any of the modifications myself. I've been happy with the phone, it's stable, battery life is good and about the only thing that doesn't work is video out. Which is why I want to update the phone. I haven't played with Android in years and this is my main phone, so I need to proceed carefully.
I'm on Straight Talk, so I also need to make sure I keep my phone unlocked as well as rooted.
What would be the safest path to a newer ROM or rooted-stock firmware that has video out working, as well as the main phone functions, like AT&T LTE, stock camera, etc. ? Also, the Device status says "Modified", so I don't know how that affects any potential updates.
Current:
Android version: 4.1.2
Baseband version: I317UCAMH3
Kernel version: 3.0.31-1071214
Build number: CleanROM 5.0.0
ClockworkMod recovery installed, version 6, I think.
Edited: I finally got some useful hits by searching for MHL/HDMI/tv out but still digesting them...
You could install and run triangle away. After that, you could flash back to stock using Odin and stock AT&T firmware from Sammobile.com.

Flashing ONLY the newest baseband on custom rom

I have a question that might be simple to answer, but i need confirmation because i don't want to brick my device recklessly.
When i got my Moto Z play, i immediatley unlocked it, flashed TWRP and installed LineageOS. So my device (including bootloader and baseband) are still on the state it arrived i guess. But my OS ist the newest LineageOS (so android 7.1.2).
My Moto Z play is an XT1635-02 32GB (bootloader adds P7 as variant), software channel must be RETEU.
My bootloader is C0.14 (from 2016-07-11)
and my baseband is M8953_10208.08.04-47e (bootloader says M8953_10208.08.04.47R ADDISON_ROW_CUST)
Are there newer versions of baseband (which might more important) and booloader? And can i flash them without problems?
Just flashing the NON-HLOS.bin in fastboot and i'm fine? Can i also use the 7.0-modem from RETAIL?
Sorry, these questions might be dumb and too careful for old users, but i'm only used to nexus devices and i am scared of bricking my Z play! Nexus factory images always had baseband and bootloader version written in the filename so it was easy to find out if you need to update. In addition there was just one "software channel" which made it hard to brick a device or flash something wrong.
McFlypants said:
I have a question that might be simple to answer, but i need confirmation because i don't want to brick my device recklessly.
When i got my Moto Z play, i immediatley unlocked it, flashed TWRP and installed LineageOS. So my device (including bootloader and baseband) are still on the state it arrived i guess. But my OS ist the newest LineageOS (so android 7.1.2).
My Moto Z play is an XT1635-02 32GB (bootloader adds P7 as variant), software channel must be RETEU.
My bootloader is C0.14 (from 2016-07-11)
and my baseband is M8953_10208.08.04-47e (bootloader says M8953_10208.08.04.47R ADDISON_ROW_CUST)
Are there newer versions of baseband (which might more important) and booloader? And can i flash them without problems?
Just flashing the NON-HLOS.bin in fastboot and i'm fine? Can i also use the 7.0-modem from RETAIL?
Sorry, these questions might be dumb and too careful for old users, but i'm only used to nexus devices and i am scared of bricking my Z play! Nexus factory images always had baseband and bootloader version written in the filename so it was easy to find out if you need to update. In addition there was just one "software channel" which made it hard to brick a device or flash something wrong.
Click to expand...
Click to collapse
I'm running the original bootloader and baseband from 6.0.1 without any issue, so I would suggest leaving it.
I don't want to get on the wrong side of you but that wasn't my question.
I wanted to know this because i'm not sure if i get the most out of my phone with an older baseband. I can't use VoLTE for example which possibly is activated with a newer baseband. Or it might improve the signal.
McFlypants said:
I don't want to get on the wrong side of you but that wasn't my question.
I wanted to know this because i'm not sure if i get the most out of my phone with an older baseband. I can't use VoLTE for example which possibly is activated with a newer baseband. Or it might improve the signal.
Click to expand...
Click to collapse
Well I'll suggest you only flash the baseband that comes with your specific firmware, if you flash the baseband from another firmware package you will end up without a IMEI and you'll have a expensive brick, which you will send to me so I can use the screen to get my mzp working again. That will be payment for warning you
Good one, flashallthetime
Back in, uh, I think Atrix time or even HTC Desire it was normal to flash/change radio baseband. It supposed to improve radio, prolong battery life... In reality, most of the time didn't do anything, sometimes broke something...
So in theory, you can do that. Should be fine but I wouldn't recommend.
If you have to, to get VoLTE, I would make a backup of the current rom, follow guide to flash back to stock and then restore backup. But be extremely careful, so many users over here bricked their devices. As far as I can see, downgrading and the accepting OTA.
Sent from my LG-V940n using Tapatalk
flashallthetime said:
Well I'll suggest you only flash the baseband that comes with your specific firmware, if you flash the baseband from another firmware package you will end up without a IMEI and you'll have a expensive brick, which you will send to me so I can use the screen to get my mzp working again. That will be payment for warning you
Click to expand...
Click to collapse
Good idea, please return it to me afterwards if it's working! :good:

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