General Warning about the MSM tool

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craznazn

Senior Member
Nov 12, 2009
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Samsung Galaxy S22 Ultra
Just as a reminder: the MSM tool resets your device and locks the bootloader. If for whatever reason, you modified partitions that are not touched by the MSM tool (like param, persist, etc), there is a chance your device will fail the integrity check and will not boot with the red message "Your device is corrupt". If you're at this stage, there is no good way to get you back. Maybe someone knows how to toggle "enable oem unlock" without being able to boot to OS, but without that ability, your device is essentially hard bricked.
 

hllywd

Senior Member
Jan 29, 2011
358
31
Just as a reminder: the MSM tool resets your device and locks the bootloader. If for whatever reason, you modified partitions that are not touched by the MSM tool (like param, persist, etc), there is a chance your device will fail the integrity check and will not boot with the red message "Your device is corrupt". If you're at this stage, there is no good way to get you back. Maybe someone knows how to toggle "enable oem unlock" without being able to boot to OS, but without that ability, your device is essentially hard bricked.
I came across the corrupt message twice during my rooting mission hold down pwr+vol up+vol down until it shut off, then held down all three buttons til it turns on and it went into bootloader mode. It did take several tries but it got there. Then I could oem lock/unlock and reboot to a fresh system. Now I didn't mess with my partitions so maybe that is something deeper but it's worth a try.
 

craznazn

Senior Member
Nov 12, 2009
787
1
493
OnePlus 8T
Samsung Galaxy S22 Ultra
I came across the corrupt message twice during my rooting mission hold down pwr+vol up+vol down until it shut off, then held down all three buttons til it turns on and it went into bootloader mode. It did take several tries but it got there. Then I could oem lock/unlock and reboot to a fresh system. Now I didn't mess with my partitions so maybe that is something deeper but it's worth a try.
Yeah, we can get to the bootloader and EDL mode. However, we can't fastboot oem lock/unlock because OEM lock/unlock option is not togged in the System -> Dev options -> OEM Unlocking. This is a T-Mobile device, so not only that, we need to flash cust-unlock first which is not possible with OEM unlocking disabled in dev options.
 

craznazn

Senior Member
Nov 12, 2009
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Samsung Galaxy S22 Ultra
Looks like I won't be doing the Tmo to EU. Looks like root will suffice until MSM for 2127 is released. I'm just wanting my camera updated to the latest and couldn't get it on unrooted. Waiting for my token, will use your magusk patch and update my camera. Thanks for the warning
The MSM for the 2127 is actually available now via remote support, just nobody has posted it online yet. That's where this warning comes from. Another user was able to run the 2127 MSM on his phone, and now it's bricked :(
 

Burt Squirtz

Senior Member
Feb 11, 2018
609
295
Google Pixel 6
Just as a reminder: the MSM tool resets your device and locks the bootloader. If for whatever reason, you modified partitions that are not touched by the MSM tool (like param, persist, etc), there is a chance your device will fail the integrity check and will not boot with the red message "Your device is corrupt". If you're at this stage, there is no good way to get you back. Maybe someone knows how to toggle "enable oem unlock" without being able to boot to OS, but without that ability, your device is essentially hard bricked.
Might be a good idea to update the thread title as it's misleading. Makes it look like the normal MSM tool is going F someone's normal variant device. Most people don't have the crappy T-Mobile variant. I understand saving a quick Buck is important though.
 

GuyInDogSuit

Senior Member
Jan 4, 2009
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Nintendo Switch
OnePlus 7T
Looks like I won't be doing the Tmo to EU. Looks like root will suffice until MSM for 2127 is released. I'm just wanting my camera updated to the latest and couldn't get it on unrooted. Waiting for my token, will use your magusk patch and update my camera. Thanks for the warning

Is this the Camera app from APKmirror? The one that you'd have to move to... privapp, I think? Because they failed to sign it correctly?
 

Burt Squirtz

Senior Member
Feb 11, 2018
609
295
Google Pixel 6
Don't understand when people say "save a quick buck on Tmo," when it's exactly the same $1069 right across. It's about getting it in hand instead of waiting for shipping. And the thread is not misleading as it is for the 2127 which is the Tmo variant but it doesn't say that haha
Clearly is misleading because he doesn't put T-Mobile in the thread title.

I'd gladly wait up to 2 weeks to get a device that has timely updates and easily has up-to-date development..
 
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craznazn

Senior Member
Nov 12, 2009
787
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OnePlus 8T
Samsung Galaxy S22 Ultra
Clearly is misleading because he doesn't put T-Mobile in the thread title.

I'd gladly wait up to 2 weeks to get a device that has timely updates and easily has up-to-date development..
It's not misleading, because ANY device where you modify a partition that is not usually touched my the MSM tool can result in a hard brick if it's checked by avb
 

craznazn

Senior Member
Nov 12, 2009
787
1
493
OnePlus 8T
Samsung Galaxy S22 Ultra
@craznazn , it's only if you edit partitions correct? My unlock token should be here in a few days and plan on only rooting for a couple apps. This won't affect my re-locking would it?
Rooting only touches the boot partition and that's fine. Even flashing AA/BA/DA is fine because all of those partitions will just get overwritten by the MSM. Things only start to get dicey when you start messing with param, persist, and the likes.
 
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drozd128

Member
Apr 14, 2021
10
4
Rooting only touches the boot partition and that's fine. Even flashing AA/BA/DA is fine because all of those partitions will just get overwritten by the MSM. Things only start to get dicey when you start messing with param, persist, and the likes.
Just theoretical question: would flashing the device to something else like LineageOS (if there was working version) help? Or is the partitions check on HW/FW level?
 

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    Clearly is misleading because he doesn't put T-Mobile in the thread title.

    I'd gladly wait up to 2 weeks to get a device that has timely updates and easily has up-to-date development..
    It's not misleading, because ANY device where you modify a partition that is not usually touched my the MSM tool can result in a hard brick if it's checked by avb
    1
    Don't understand when people say "save a quick buck on Tmo," when it's exactly the same $1069 right across. It's about getting it in hand instead of waiting for shipping. And the thread is not misleading as it is for the 2127 which is the Tmo variant but it doesn't say that haha
    Clearly is misleading because he doesn't put T-Mobile in the thread title.

    I'd gladly wait up to 2 weeks to get a device that has timely updates and easily has up-to-date development..
    1
    @craznazn , it's only if you edit partitions correct? My unlock token should be here in a few days and plan on only rooting for a couple apps. This won't affect my re-locking would it?
    Rooting only touches the boot partition and that's fine. Even flashing AA/BA/DA is fine because all of those partitions will just get overwritten by the MSM. Things only start to get dicey when you start messing with param, persist, and the likes.
    1
    I haven't read the 2nd page yet. But I have to say ummm. It is not misleading at all. It doesn't matter if it's oneplus 7 or tmo- oneplus 9 pro msm tool. Regardless it will still lock the bootloader and if the partitions isn't correct it will mess the phone up
    1
    Check my thread...run script and oem unlocked will not be greyed out no more.