Asking how to revert back to stock marshmallow

Apr 13, 2017
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Sorry i'm new to this whole ADB and cmd thing I need a tutorial on how to relock the bootloader and how to find the right RUU and match the CID i don't wanna brick this phone thank you ?
 
Apr 13, 2017
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Oh wow yes sorry relock bootloader by fastboot oem lock. Also if you changed your cid should match the ruu you want to flash.
Sorry i'm new to this whole ADB and cmd thing I need a tutorial on how to relock the bootloader and how to find the right RUU and match the CID i don't wanna brick this phone thank you ?
 

redpoint73

Recognized Contributor
Oct 24, 2007
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Sorry i'm new to this whole ADB and cmd thing I need a tutorial on how to relock the bootloader and how to find the right RUU and match the CID i don't wanna brick this phone thank you
Did you unlock the bootloader yourself? If so, you know enough about fastboot to relock the bootloader.

Also, if you do fastboot getvar all, and post the result (delete IMEI and serial number) we can see the CID, and determine what RUU (if that CID has one).

Or the other option to go back to Sense Marshmallow, is to restore a stock TWRP backup as suggested. Here is another thread of such stock TWRP backups, and this one has better instructions:
https://forum.xda-developers.com/htc-one-m8/help/tutorial-how-to-stock-stock-twrp-t3086860

EDIT: Fixed the link above, which was clearly not the right one (intended for a reply to a different thread).

Nobody has been born learned
While the post was not particularly polite (nor is he required to be so), I do agree with the main point: if you are flashing custom ROMs, you really should have researched how to return to stock. I see that a lot of folks skip this (you aren't the only one, by far), but I also don't see why they do. Would you take apart your car's engine without knowing how to put it back together? Probably not.

Along those basic lines (good rules of thumb for phone modding), if you had simply made your own backup of the stock ROM before flashing a custom ROM; you could simply just restore that backup in order to revert to stock. It's a basic good practice: never do any mods (root, custom ROM) without first making a TWRP backup.
 
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Apr 13, 2017
44
4
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Did you unlock the bootloader yourself? If so, you know enough about fastboot to relock the bootloader.

Also, if you do fastboot getvar all, and post the result (delete IMEI and serial number) we can see the CID, and determine what RUU (if that CID has one).

Or the other option to go back to Sense Marshmallow, is to restore a stock TWRP backup as suggested. Here is another thread of such stock TWRP backups, and this one has better instructions:
https://www.xda-developers.com/the-...axy-s8s8-varying-between-ufs-2-1-and-ufs-2-0/

---------- Post added at 09:40 AM ---------- Previous post was at 09:35 AM ----------



While the post was not particularly polite (nor is he required to be so), I do agree with the main point: if you are flashing custom ROMs, you really should have researched how to return to stock. I see that a lot of folks skip this (you aren't the only one, by far), but I also don't see why they do. Would you take apart your car's engine without knowing how to put it back together? Probably not.

Along those basic lines (good rules of thumb for phone modding), if you had simply made your own backup of the stock ROM before flashing a custom ROM; you could simply just restore that backup in order to revert to stock. It's a basic good practice: never do any mods (root, custom ROM) without first making a TWRP backup.
Thank you and yes. I should have known better before flashing an RR ROM I didn't search for it because i thought it was simple
But are you saying that i can download another stock ROM TWRP backup and flash it and i'd good to go or i have to get the right RUU ?
 

redpoint73

Recognized Contributor
Oct 24, 2007
15,259
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Thank you and yes. I should have known better before flashing an RR ROM I didn't search for it because i thought it was simple
Modding phones is not simple. You should research and understand everything properly, before you do any mods to any device. Maybe all the YouTube guides and one-click root apps make phone modding look easy, but it's really not a trivial thing.

Maybe it's just my own personality. But to me, it's basic logic that you shouldn't tinker with an electronic device that cost hundreds of dollars, without having some backup plans, knowing how to undo the mods, etc.

But are you saying that i can download another stock ROM TWRP backup and flash it and i'd good to go or i have to get the right RUU ?
You can do either (restore stock TWRP backup vs. run RUU). That is, assuming your version M8 has an RUU, not all do (and you haven't given any info that would allow us to determine that).

I already said that restoring a stock TWRP backup was an option, and it was also suggested by another (Post #8 above). So I don't now what you asked that question. Obviously it's something you can do; otherwise why would we say it was?

Keep in mind that a stock TWRP backup is not exactly the same as a flashable ROM. You need to extract the files, save them to the proper place on the phone, then use the RESTORE option in TWRP (as opposed to INSTALL for flashable ROMs). The process (and required files) can be found on the following thread (I tried to give this link above, but linked it improperly - so here it is again):
https://forum.xda-developers.com/htc-one-m8/help/tutorial-how-to-stock-stock-twrp-t3086860
 
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Apr 13, 2017
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Modding phones is not simple. You should research and understand everything properly, before you do any mods to any device.

Maybe it's just my own personality. But to me, it's basic logic that you shouldn't tinker with an electronic device that cost hundreds of dollars, without having some backup plans, knowing how to undo the mods, etc.



You can do either (restore stock TWRP backup vs. run RUU). That is, assuming your version M8 has an RUU, not all do (and you haven't given any info that would allow us to determine that).

I already said that restoring a stock TWRP backup was an option, and it was also suggested by another (Post #8 above). So I don't now what you asked that question. Obviously it's something you can do; otherwise why would we say it was?

Keep in mind that a stock TWRP backup is not exactly the same as a flashable ROM. You need to extract the files, save them to the proper place on the phone, then use the RESTORE option in TWRP (as opposed to INSTALL for flashable ROMs). The process (and required files) can be found on the following thread (I tried to give this link above, but linked it improperly - so here it is again):
https://forum.xda-developers.com/htc-one-m8/help/tutorial-how-to-stock-stock-twrp-t3086860
I read the thread and it's pretty simple now i know how to get back to htc sense
Thank you I really appreciate your help ❤
 
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aliasi11

Senior Member
Apr 2, 2009
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Toronto
That's what i want to i'm looking forward to try the LeeDroid's ROM as soon as i get bored from Resurrection Remix thank you for all the support i always appreciate positive vibes
I wish I could try Resurrection Remix too. but unfortunately I cant use all of Naugat ROMs :rolleyes: :(
Why dont you also try some of the ROMs other then pure M8 ROM, e.g. M10 Sense ROM etc? I am running M10 ROM and its fantastic.
I always be with the positive and jolly vibes :eek: and encourage others to be like this
 
Apr 13, 2017
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I wish I could try Resurrection Remix too. but unfortunately I cant use all of Naugat ROMs :rolleyes: :(
Why dont you also try some of the ROMs other then pure M8 ROM, e.g. M10 Sense ROM etc? I am running M10 ROM and its fantastic.
I always be with the positive and jolly vibes :eek: and encourage others to be like this
Wow why can't you try Resurrection Remix ?
Where did you find M10 Rom ?? I'm curious