Will flashing the att firmware to an unlocked s9 from best buy (u1) wipe all data from my phone? If so is there any way to avoid wiping?
f10a said:
Will flashing the att firmware to an unlocked s9 from best buy (u1) wipe all data from my phone? If so is there any way to avoid wiping?
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If you use HOME_CSC then you won't loose any data :good:
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As I'm not located in the US, I am free to utilize non-carrier unlock methods. Anyone used one for the Tmo Note 2 successfully?
You know that both the Note II and S3 are able to be unlocked through the debug menu? @owl74's thread will show you how: http://forum.xda-developers.com/showpost.php?p=34661189&postcount=1
flatlander_2k5 said:
You know that both the Note II and S3 are able to be unlocked through the debug menu? @owl74's thread will show you how: http://forum.xda-developers.com/showpost.php?p=34661189&postcount=1
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I thought it required a certain version ROM? I'd rather pay 20 quid than have to downgrade and redownload all my app after unlocking and reupgrading the ROM. If not I'll give it a go.
Not positive about that, I'm stock rooted on a T-Mo Note II and the unlock survives ROM flashing and OTA updates.
Anyone able to confirm or deny that this loophole is only available on certain ROMs?
You need both a 4.1.1 and the correct radio. Just nandroid your current rom, Odin the UVALJ1 rom, do the unlock, Odin the latest rooted from mrRobinson, flash TWRP, restore your nandroid, then profit. You will be unlocked, using the current radio, and running exactly as before.
I'd also TiBu and store your internal sd's android folder somewhere safe in case there is an issue.
But only of you are not subject to US law... I believe that the US law regarding the unlocking of cell phones is RIDICULOUS.
Hastily spouted for your befuddlement
The menus have been disabled in later 4.1.2 ROMs.
The unlock survives ROM flashes, modem flashes, everything really.
With that said, making a backup with TWRP or CWM, flashing the older ROM with Odin, unlocking and restoring your backup is not that hard to do.
Sent from my SGH-T889V using xda app-developers app
Hi there. I have a very simple question. I bought an AT&T version Tab s 10.5. I have tried Googling all over the web for this issue but I can't find a solution. I am very new to flashing roms. I have done it in the past but that was much easier back then. Last time I flash a rom was on a Google G1. Anyway the model of AT&T Tab S is T807A. I am trying to flash the Tmobile stock rom T807T on this tablet. Is there anyway I can do it? Odin fails at NAND write. Please someone help me out. I don't want to flash a custom rom. Just replace the AT&T rom with T-Mobile Stock rom. Thank You.
tmjam2002 said:
Hi there. I have a very simple question. I bought an AT&T version Tab s 10.5. I have tried Googling all over the web for this issue but I can't find a solution. I am very new to flashing roms. I have done it in the past but that was much easier back then. Last time I flash a rom was on a Google G1. Anyway the model of AT&T Tab S is T807A. I am trying to flash the Tmobile stock rom T807T on this tablet. Is there anyway I can do it? Odin fails at NAND write. Please someone help me out. I don't want to flash a custom rom. Just replace the AT&T rom with T-Mobile Stock rom. Thank You.
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Att locks it bootloaders. That means you can only flash firmwares from att only. Sadly you can't install Tmobile rom on att
So what about T-Mobile? Is it's bootloader locked too? So I won't be able to install Custom FW on my AT&T Tab?
That means you can only flash att firmware on your att tab s. And Tmobile firmware only on a Tmobile device. You can install a custom FW on att tab for now
Gotcha. Thank You so much for your help. I am not so good with installing custom rom any guide you can reccommend. A forum sticky or post I should read where it tells me how I can install firmware. I don't care about the Knox warranty.
Made a big mistake tried to root the device realize couldn't. Now I am getting the error about device needing to connect to Kies 3 to fix firmware. Unfortunately Kies does not support this AT&T device so I am out of luck. Any idea or anyone know if I can find AT&T stock firmware and just flash it with Odin? Thank You
tmjam2002 said:
Made a big mistake tried to root the device realize couldn't. Now I am getting the error about device needing to connect to Kies 3 to fix firmware. Unfortunately Kies does not support this AT&T device so I am out of luck. Any idea or anyone know if I can find AT&T stock firmware and just flash it with Odin? Thank You
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Click to collapse
Try factory reseting in recovery. If that doesn't work then your out of luck there's no firmware for att. Sorry
Just go into recovery and wipe the cache. Factory reset will probably do it too.
Anyone have Samsung Tab S T807T stock firmware?
ashyx said:
Just go into recovery and wipe the cache. Factory reset will probably do it too.
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I bricked my tablet but I can get it with ODIN.
Thanks!
Okay I am on pie. CSA2 or whatever solidres latest ROM is. I'm not liking pie at all. Mainly for design and no V4A support or any dual speaker/ louder volume mods.
Can I downgrade or flash Oreo ROMS while on a PIE ROM? I flashed the twrp flashable stuff after I flashed the rom.
Please any help is great thanks
Flash stock with ODIN using CSC not HOME_CSC, done
I want to retain root tho
this.guy.lol said:
I want to retain root tho
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Click to collapse
You cannot, you'll have to root again later
*Detection* said:
You cannot, you'll have to root again later
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Click to collapse
I got it figured out thx. Was also able to retain root.
this.guy.lol said:
I got it figured out thx. Was also able to retain root.
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Click to collapse
You downgraded from Pie to Oreo and retained root, I'd love to hear how.....
Unless you flashed a pre-rooted ROM, which is obvious you would have root after downgrading that way
*Detection* said:
You downgraded from Pie to Oreo and retained root, I'd love to hear how.....
Unless you flashed a pre-rooted ROM, which is obvious you would have root after downgrading that way
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Click to collapse
Whole point was me wanting to downgrade. Was able. Flashed stock rooted and viola. Now I'm back on pie since 8.0 is trash and Google play ALWAYS FC after 1 day
Just downgraded my S9+ back to Oreo. Pie was terrible, huge battery drain.
HOME_CSC for downgrading?
*Detection* said:
Flash stock with ODIN using CSC not HOME_CSC, done
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Click to collapse
I want to downgrade from Pie to Orie on my Galaxy S9.
So I downloaded the firmware from Sammobile which has both CSC and HOME_CSC
Two questions:
Are there any other things that need to be done on the phone before downgrading like factory reset or something?
I read that HOME_CSC will Flash the firmware without wiping the data. Can I use HOME_CSC for downgrading ? (I haven't rooted my phone)
RCL0000ZK said:
I want to downgrade from Pie to Orie on my Galaxy S9.
So I downloaded the firmware from Sammobile which has both CSC and HOME_CSC
Two questions:
Are there any other things that need to be done on the phone before downgrading like factory reset or something?
I read that HOME_CSC will Flash the firmware without wiping the data. Can I use HOME_CSC for downgrading ? (I haven't rooted my phone)
Click to expand...
Click to collapse
1. No
2. No
Restore backup
Is it possible to restore full backup from SmartSwitch taken on Pie back to Oreo ?
Sorry for the newb questions but what is the process of going back to my original unlocked version? Do I just flash the latest unlocked firmware on Sammobile?
shiftkenny said:
Sorry for the newb questions but what is the process of going back to my original unlocked version? Do I just flash the latest unlocked firmware on Sammobile?
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To be clear you flash a U version and want to go back to U1?
If yes download the U1 firmware from SamFirm. You have to use patched odin to go from U to U1.
TechOut said:
To be clear you flash a U version and want to go back to U1?
If yes download the U1 firmware from SamFirm. You have to use patched odin to go from U to U1.
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Yeah thanks so much. I ordered the unlocked version tried to flash att firm and get wifi calling. After successful flash wifi calling never worked. so I'm just going to revert back. lol
shiftkenny said:
Yeah thanks so much. I ordered the unlocked version tried to flash att firm and get wifi calling. After successful flash wifi calling never worked. so I'm just going to revert back. lol
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What a coincidence? I have similar issue with my phone. I tried flashing t-mobile (U version) firm and now want to go back to unlocked (U1 version) firmware.
So, do let me know if you were able to successfully revert as well as any tips/cautions?
I'm using an ATT carrier unlocked S20+ on the Verizon network. I keep checking for an OTA update but nothing has come through. This is my first carrier unlocked phone so I'm not sure how I'd get updates or where they would come from. I've included some screen shots.
Would I be able to flash the new firmware through Odin if I cant get OTAs? If so, which firmware would I use? Verizon, ATT?
Thanks in advance for any help.
Did you flash 2.5 manually, or was it OTA? If it was OTA, you could just wait for ATT to release Android 11 for your device.
Either way, you could flash any G986U ROM. Any of these should work: https://samfw.com/firmware/SM-G986U
X04D said:
Did you flash 2.5 manually, or was it OTA?
Either way, you could flash any G986U ROM. This one should work fine: https://samfw.com/firmware/SM-G986U1/ATT/G986U1UEU1CTKJ
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I didn't flash anything. I bought it like this used. So I'd have to flash an ATT rom then. Would the phone receive an OTA update if ATT puts out an update even though I'm on Verizon network with a Verizon sim? Thanks for the info.
dbldigit10 said:
I didn't flash anything. I bought it like this used. So I'd have to flash an ATT rom then. Would the phone receive an OTA update if ATT puts out an update even though I'm on Verizon network with a Verizon sim? Thanks for the info.
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Click to collapse
If you're an VZW I'd opt for a VZW ROM. https://samfw.com/firmware/SM-G986U1/VZW/G986U1UEU1CTKJ
X04D said:
If you're an VZW I'd opt for a VZW ROM. https://samfw.com/firmware/SM-G986U1/VZW/G986U1UEU1CTKJ
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Click to collapse
Ok so I've downloaded the file and got Odin. I'm planning on flashing this weekend. The only question I have is my phone is not rooted. Is that going to be a problem. It's been a while since I've customize my phone. I think the last one I rooted and flashed roms to was my S4. Thanks again for the info.
dbldigit10 said:
Ok so I've downloaded the file and got Odin. I'm planning on flashing this weekend. The only question I have is my phone is not rooted. Is that going to be a problem. It's been a while since I've customize my phone. I think the last one I rooted and flashed roms to was my S4. Thanks again for the info.
Click to expand...
Click to collapse
Don't worry. Flashing via Odin won't trigger knox status. Just remember to select HOME_CSC before you start flashing if you want to keep all your apps and data
dbldigit10 said:
Ok so I've downloaded the file and got Odin. I'm planning on flashing this weekend. The only question I have is my phone is not rooted. Is that going to be a problem. It's been a while since I've customize my phone. I think the last one I rooted and flashed roms to was my S4. Thanks again for the info.
Click to expand...
Click to collapse
Nah you're good. If you had root you'd lose it anyway, so you're good to go. Good luck!
you will only get ota on a att phone if you have a att sim card your best bet would be to flash the u1 firmware
X04D said:
Did you flash 2.5 manually, or was it OTA? If it was OTA, you could just wait for ATT to release Android 11 for your device.
Either way, you could flash any G986U ROM. Any of these should work: https://samfw.com/firmware/SM-G986U
Click to expand...
Click to collapse
i have a regular factory unlocked S20 (u.s. variant). can i make an image backup of my current phone and if need be revert back from Android 11 to Android 10 with the backed up image?
Thanks for all the info! I flashed the VZW version seamlessly. I used the patched Odin with no issues.
Now will I be able to receive any OTA updates or will I need to continue to flash new updates from now on?
Thanks again!