Bootloader upgrade questions - Verizon Galaxy Note 4 Q&A, Help & Troubleshooting

Hi,
I was reading the threads about upgrading / unlocking the bootloaders.
After spending almost half day rooting and rerooting, I have a few questions.
Right now I am on BPA1, rooted, stock. In order to install an Marshmallow ROM, it looks like I have to upgrade the bootloader, to minimum CPD1. Here it gets confusing. I already changed the CID to developer and the bootloader is unlocked. If I try to upgrade:
1. Can I flash just the bootloader (and eventually the modem) and not the entire stock firmware?
2. Will I lose root? If yes, I have to reroot, but the rooting tools are kind on unreliable, spent a lot of time already, no guarantee they will work again...In order to push the files for bootloader unlock, root is required. Is there a way to keep root? Flashing the stock firmware seems to lock the bootloader and eliminate root, so every time something needs to be upgraded, we have to go through the same process?
3. At this point, it looks that there are so many updates: CPD, CPF, CPG, CPJ, that I need a CPR if I have to repeat the process 4 times! Some roms don't require the latest update, but if it installed, will it work? E.g. the rom requires CPF and I upgrade to CPJ, what happens?
Thanks!

razvu said:
Hi,
I was reading the threads about upgrading / unlocking the bootloaders.
After spending almost half day rooting and rerooting, I have a few questions.
Right now I am on BPA1, rooted, stock. In order to install an Marshmallow ROM, it looks like I have to upgrade the bootloader, to minimum CPD1. Here it gets confusing. I already changed the CID to developer and the bootloader is unlocked. If I try to upgrade:
1. Can I flash just the bootloader (and eventually the modem) and not the entire stock firmware?
2. Will I lose root? If yes, I have to reroot, but the rooting tools are kind on unreliable, spent a lot of time already, no guarantee they will work again...In order to push the files for bootloader unlock, root is required. Is there a way to keep root? Flashing the stock firmware seems to lock the bootloader and eliminate root, so every time something needs to be upgraded, we have to go through the same process?
3. At this point, it looks that there are so many updates: CPD, CPF, CPG, CPJ, that I need a CPR if I have to repeat the process 4 times! Some roms don't require the latest update, but if it installed, will it work? E.g. the rom requires CPF and I upgrade to CPJ, what happens?
Thanks!
Click to expand...
Click to collapse
Yeah it definitely gets a little confusing, but I might be able to clear up a few of your questions. The bootloader you want to upgrade to is the cpd1 version, after that the only things that change when you upgrade to pf3, pg2, and pj1 are the kernels and modems. Right now I'm using the latest pj1 firmware and my bootloader has never changed from cpd1 and flashed between the different versions several times and for unlocking the bootloader on 6.0 you do have to repeat the process you did for lp, unfortunately.

kevintm78 said:
Yeah it definitely gets a little confusing, but I might be able to clear up a few of your questions. The bootloader you want to upgrade to is the cpd1 version, after that the only things that change when you upgrade to pf3, pg2, and pj1 are the kernels and modems. Right now I'm using the latest pj1 firmware and my bootloader has never changed from cpd1 and flashed between the different versions several times and for unlocking the bootloader on 6.0 you do have to repeat the process you did for lp, unfortunately.
Click to expand...
Click to collapse
OK, so what file do I need to download and flash? I have to unloack the CPD1 bootloader and reroot? Which app? Kingroot or Kingoroot?
Once this is updated, how can I upgrade the modems and kernels, can I flash them individually?
Thanks!

razvu said:
OK, so what file do I need to download and flash? I have to unloack the CPD1 bootloader and reroot? Which app? Kingroot or Kingoroot?
Once this is updated, how can I upgrade the modems and kernels, can I flash them individually?
Thanks!
Click to expand...
Click to collapse
These are excellent questions that I'm sure a lot of members are thinking, but just haven't formally asked.
I have a Developer Device that I got directly from a Samsung 2 years ago. When hsbadr put out CM 14.1, I was still on Android 5.1.1. It seemed like a daunting task to do all that was required to get to CM 14.1, but I went ahead with it. I decided that it just made more sense to have my device CID changed to the one that everyone else was on, so I went through all the motions. Yes, the root thing was very touchy. But it really wasn't all that bad.
I'm now on bootloader CPD1, and just today upgraded the baseband by odin flashing the partial firmware for CPJ2 baseband.
Can't wait for hsbadr's next build!!!!

Ok, so in conclusion, which file needs to be flashed to upgrade to CPD1? Is it a stock tar, or the bootloader can be flashed just by itself? After flashing I'm gonna lose root again and have to start over before changing the CID?
You mentioned that you have a developer edition. I have one developer and one retail. My developer is still on an older Jasmine, but it needs to sent for repair. I'm trying to get the retail one done, so I can use it in the meantime. Then, the plan is to get the same thing done on the developer edition. I was hoping that would be easier, as the bootloader is unlocked, but apparently that's not the case.
Sent from my SM-N910V using XDA Free mobile app

Nobody can recommend the right file to flash?
Sent from my SM-N910V using XDA Free mobile app

I am also looking for advice on how to upgrade the bootloader. I am on BPA1 currently but everything I find keeps upgrading everything but the bootloader.
Thanks in advance for any help you can provide.

Related

Just need a bit of help getting going

So Ive searched around and I just can't find a definitive answer so here is what I got.
I understand that this here; is how you use marshmallow with the new bootloader unlock and root: http://forum.xda-developers.com/not...t/howto-bootloader-unlock-upgrade-to-t3398144
I also know that I have to do this exploit first to unlock the bootloader: http://forum.xda-developers.com/note-4-verizon/general/note-4-verizon-bootloader-unlock-t3358913
My issue is I ended up getting forced OTA 2 weeks ago. So my current question is, Do I have to roll back to lollipop? Is root/unlock even possible for me? If so, How do I do that since I haven't rolled back before. Its been a while since I've been into rooting/roms. Is there a link to doing it for marshmallow to lollipop? Also what about the firmware?
Current Stats:
Model: SM-N910V
Baseband: N910VVRU2CPD1
Android Version: 6.0.1
Build: MMB29M.N910VVRU2CPD1
Kernel Version: 3.10.40
I just need an answer since Ive been reading threads the last 2 hours. Its confusing since the titles of most are how to unlock bootloader THEN goto marshmallow. Thanks Guys!
I think I solved it myself. Looking like I'm effed with this bootloader. Since I don't think its rootable or unlockable.
ThatRoo said:
I think I solved it myself. Looking like I'm effed with this bootloader. Since I don't think its rootable or unlockable.
Click to expand...
Click to collapse
You can try to roll back to 5.1.1 by flashing the full firmware (thanks, hsbadr!) using ODIN. You can unlock the bootloader on this version.
The question is, will your phone let you. In another thread, the success rate appears to be something less than 100%. I don't know what the harm would be... if you can't do it, ODIN will likely fail. At any rate, the attempt is on you. I can't be responsible for what happens.
douger1957 said:
You can try to roll back to 5.1.1 by flashing the full firmware (thanks, hsbadr!) using ODIN. You can unlock the bootloader on this version.
The question is, will your phone let you. In another thread, the success rate appears to be something less than 100%. I don't know what the harm would be... if you can't do it, ODIN will likely fail. At any rate, the attempt is on you. I can't be responsible for what happens.
Click to expand...
Click to collapse
I did it just trying to get cyanogen to work with wifi and data/cellular to keep. However my phone is dev now and TWRP is installed.
ThatRoo said:
I did it just trying to get cyanogen to work with wifi and data/cellular to keep. However my phone is dev now and TWRP is installed.
Click to expand...
Click to collapse
Then you're good to go.
douger1957 said:
Then you're good to go.
Click to expand...
Click to collapse
Just frustrated right now trying to get Wifi to work. It looks like its suggested to try Flashing MM Stock, Reroot and Re-unlock bootloader here:
http://forum.xda-developers.com/not...t/howto-bootloader-unlock-upgrade-to-t3398144
Then use TWRP after all that.
ThatRoo said:
Just frustrated right now trying to get Wifi to work. It looks like its suggested to try Flashing MM Stock, Reroot and Re-unlock bootloader here:
http://forum.xda-developers.com/not...t/howto-bootloader-unlock-upgrade-to-t3398144
Then use TWRP after all that.
Click to expand...
Click to collapse
Just make sure you're paying attention to what you're flashing. There are only three roms in the verizon development section that are able to utilize the 6.01 bootloader and modem. JASMINE ROM, PAULPIZZ 6.01 Beta and Cm13. The other roms are ports based on 5.1.1 so you may need to stay on the previous setup until more roms are updated
Tip the OP usually states what works/does not work and updates when things are fixed . The information changes quickly so sometimes you may need to read the thread from the end back to the beginning to see if your issues have been addressed
It was actually super simple once I found the thread on how to go back to 5.1.1 then how to take that and go unlocked w/ marshmallow chain. Last thing to figure out is disabling OTA on Jasmin ROM

Note 4 on Page Plus - how to safely acquire official OTA updates?

I've searched and looked at a couple of guides, etc. but am still unsure: How can I get my Verizon Note 4 up to date with latest Marshmallow? I have seen some guides that say that flashing the official rom will lock the bootloader - I'm assuming this isn't a problem for Page Plus?
My phone is from ebay, but unmodified as far as I can tell.
hrab said:
I've searched and looked at a couple of guides, etc. but am still unsure: How can I get my Verizon Note 4 up to date with latest Marshmallow? I have seen some guides that say that flashing the official rom will lock the bootloader - I'm assuming this isn't a problem for Page Plus?
My phone is from ebay, but unmodified as far as I can tell.
Click to expand...
Click to collapse
Since you're not going to get an OTA the way I would do it is to drop this file (Thanks, hsbadr!) on your SD card, boot into recovery and flash the update.zip. You can do the same with this file (thanks again, hsbadr!) to bring yourself up to date. The second file is the monthly Android security update. That will leave you with a locked Marshmallow bootloader. If it is your intention to unlock a Marshmallow bootloader, that is not how I would do it.
This is how I would do it. Follow the directions closely.
douger1957 said:
Since you're not going to get an OTA the way I would do it is to drop this file (Thanks, hsbadr!) on your SD card, boot into recovery and flash the update.zip. You can do the same with this file (thanks again, hsbadr!) to bring yourself up to date. The second file is the monthly Android security update. That will leave you with a locked bootloader. If it is your intention to unlock a Marshmallow bootloader, that is not how I would do it.
This is how I would do it. Follow the directions closely.
Click to expand...
Click to collapse
Thanks for being so helpful. I have flashed custom roms, rooted, etc with other phones, but I don't have plans for this one just yet. I suppose it's best to have the option in the future. I saw a thread with links to the OTA upgrade files - can they be downloaded and upgraded manually?
hrab said:
Thanks for being so helpful. I have flashed custom roms, rooted, etc with other phones, but I don't have plans for this one just yet. I suppose it's best to have the option in the future. I saw a thread with links to the OTA upgrade files - can they be downloaded and upgraded manually?
Click to expand...
Click to collapse
Use the first two links I gave you, drop the files one at a time starting with the first one, boot into recovery and chose the option that says something about update. Then drop the second file on the sd card and do the same thing.
If you decide to unlock the bootloader, you'll need to downgrade to 5.1.1 in ODIN. If you want an unlocked Marshmallow bootloader, you'll have to do the unlock process twice.
douger1957 said:
Use the first two links I gave you, drop the files one at a time starting with the first one, boot into recovery and chose the option that says something about update. Then drop the second file on the sd card and do the same thing.
If you decide to unlock the bootloader, you'll need to downgrade to 5.1.1 in ODIN. If you want an unlocked Marshmallow bootloader, you'll have to do the unlock process twice.
Click to expand...
Click to collapse
Awesome, thanks. I'm assuming the process you describe will [should] keep my apps/data intact?
hrab said:
Awesome, thanks. I'm assuming the process you describe will [should] keep my apps/data intact?
Click to expand...
Click to collapse
It should. They're Verizon updates.
douger1957 said:
It should. They're Verizon updates.
Click to expand...
Click to collapse
When I boot into recovery, the android logo has chinese text below it. Is this a concern?

[Tool][HTC 10][S-On]Firmware Updater

Krassermensch's Firmware Update Tool
My situation:
I'm too young to buy the Sunshine App to set my device S-Off but I want to update my device's firmware every time a firmware update's available. Since I compile ROMs and cannot do that via OTA updates the only acceptable way for me is to install signed firmwares in a locked bootloader. After doing that manually I thought I should write a tool that installs the right firmware for your device automatically. As I'm already running the latest firmware on my device after doing the procedure manually I cannot test if the flash part works correctly. Anyway, I achieved to read out the CID as well as the current firmware version and my tool reports that I'm running the latest firmware version I integrated for my device what's correct. So this part works well.
How the tool works:
The tool asks you if you've already installed the HTC USB drivers on your computer. If you haven't you can install it easily using my tool. After that the tool explains you how to set up your phone to be detected by the computer. Then it checks which device you have and checks which firmware's currently installed on it. Right after that the tool installs all the firmwares newer than the one that's currently installed on your phone one after another until the latest firmware my tool is shiped with runs on your device. The procedure doesn't wipe your data since signed firmware-updates are installed.
Requirements:
- An HTC 10
- A computer running windows
- An internet connection
- An unlocked bootloader
- An installed TWRP
Who is this tool for?
All the people who can't or don't want to set their device S-Off while running a non-stock ROM.
Why should I use this tool?
- It updates your firmware to the latest one available for your device automatically
- It doesn't wipe your storage
- You don't need to be S-Off
Download
https://www.androidfilehost.com/?fid=745425885120704223
When the file is downloaded just extract it on your Windows computer and run the batch file. Everything else will be explained.
Important to know
Your boot and recovery partitions will be replaced by the stock ones so after successfully updating your firmware you need to reflash TWRP as well as your Boot partition.
This process is performed automatically now. No need to do that manually.
Tools using ADB just like mine may interfere with other tools that also use ADB. Make sure all these tools are disabled.
Now I need your feedback to be able to optimize the tool! I'll add new firmwares from time to time. I'm looking forward to your reviews
GitLab
https://gitlab.com/Feulner/Firmware-Update-Tool-HTC10
If you like my work consider a donation to support me in financing computer-components which are meant to replace the defect ones in my broken PC.
If you donate you'll donate to my father who will gimme the money. Thank you really much!
This works with unsigned firmware?
Good job, though irrelevant to me
xunholyx said:
This works with unsigned firmware?
Good job, though irrelevant to me
I would guess that you would have to have matching CID and MID of course.
Click to expand...
Click to collapse
No no, not unsigned firmware. I'll explain it more detailed tomorrow or so. The tool just checks your device's CID as well as your device's current firmware version and updates it to the most current firmware version I integrated in my tool. If your firmware is very old the tool also updates again and again until you have the lässt firmware automatically.But it uses signed firmware packages. The biggest advantage is that it should work fully automatic. Try it out and let me know what you think. I go to bed now...
krassermensch said:
No no, not unsigned firmware. I'll explain it more detailed tomorrow or so. The tool just checks your device's CID as well as your device's current firmware version and updates it to the most current firmware version I integrated in my tool. If your firmware is very old the tool also updates again and again until you have the lässt firmware automatically.But it uses signed firmware packages. The biggest advantage is that it should work fully automatic. Try it out and let me know what you think. I go to bed now...
Click to expand...
Click to collapse
I'm s-off since the day after I got my phone, so.......
It sounds like a great idea. I'm sure lot of people will appreciate this. If it does work like you say, WAY better than going back to stock.
xunholyx said:
I'm s-off since the day after I got my phone, so.......
It sounds like a great idea. I'm sure lot of people will appreciate this. If it does work like you say, WAY better than going back to stock.
Click to expand...
Click to collapse
Since when do you have to go back to stock to "fastboot flash zip some_firmware.zip" (as this tool does)?
--beaups
Hm sounds good, but i wont use it until we have some more information what it actually does.
As far as i know, theres no way to just update your firmware with signed zips without partly wiping your device. I had to reflash Viper10 (or restore a nandroid backup) the last time i updated my firmware, cause boot and recovery partitions got replaced. Not completely sure if this affects stock devices, it may work there, but not for devices which are modified with a custom ROM. For this you need a NoWipe firmware from sneakyghosts thread, but these cant be flashed while s-on.
So please explain in more details what your tool does, of course when youve got your sleep .
It most likely flashes firmware zips from OTA updates since those do not wipe the device. He already said it does that, he said if you're on a very old firmware it will keep updating your firmware progressively until you're on the latest version. So if you've never updated before, and there have been three updates since then, the tool will flash the firmware zip of each OTA one after the other.
Updated the main post, hopefully everything's clear now. I need your reviews now. I'm also thinking about an automatic bootloader lock with backup solution so you don't need to lock your bootloader manually and also don't lose your data partition.
Why it doesn't work with unlocked bootloader?
CroCop18 said:
Why it doesn't work with unlocked bootloader?
Click to expand...
Click to collapse
I didn't try but normally your HTC 10 would block the installation if the bootloader is unlocked. Could you try it out and report. It's a bit hard to try it out by myself currently... It will most probably report that your new firmware's flashed but it actually will not be flashed after that if your bootloader's unlocked. If it's flashed anyway it'd be perfect since I'd not have to make a backup solution in that case. But I guess that the 10 isn't different to the M9 for example when it comes to firmware flashing. I read that you can have an unlocked bootloader if your device is S-Off but those are things I haven't been able to try out so far...
krassermensch said:
I didn't try but normally your HTC 10 would block the installation if the bootloader is unlocked. Could you try it out and report. It's a bit hard to try it out by myself currently... It will most probably report that your new firmware's flashed but it actually will not be flashed after that if your bootloader's unlocked. If it's flashed anyway it'd be perfect since I'd not have to make a backup solution in that case. But I guess that the 10 isn't different to the M9 for example when it comes to firmware flashing. I read that you can have an unlocked bootloader if your device is S-Off but those are things I haven't been able to try out so far...
Click to expand...
Click to collapse
Really? You don't know how to unlock your bootloader? You don't need S-Off for it.
This answers the question I had wondered about. How does this install OTAs with a custom recovery? It doesn't, correct?
You need to be stock for this. The first thing you do after unlocking the bootloader (which pretty much anyone here has done) is to flash a custom recovery.
This tool will only work for users who are still completely on stock.
IO would test myself, but I'm already S-Off/unlocked bootloader/custom recovery/modified firmware/custom ROM|, and I don't want to take the time to go back to stock and incrementally update the steps to see what won't work. I think as soon as you flash custom recovery, you can't use this method.
If you want to unlock your bootloader, HTC provides the method and instructions at htcdev.com
xunholyx said:
Really? You don't know how to unlock your bootloader? You don't need S-Off for it.
This answers the question I had wondered about. How does this install OTAs with a custom recovery? It doesn't, correct?
You need to be stock for this. The first thing you do after unlocking the bootloader (which pretty much anyone here has done) is to flash a custom recovery.
This tool will only work for users who are still completely on stock.
IO would test myself, but I'm already S-Off/unlocked bootloader/custom recovery/modified firmware/custom ROM|, and I don't want to take the time to go back to stock and incrementally update the steps to see what won't work. I think as soon as you flash custom recovery, you can't use this method.
If you want to unlock your bootloader, HTC provides the method and instructions at htcdev.com
Click to expand...
Click to collapse
Sure I know how to unlock a boitloader. If you watch my profile you can see I'm a ROM maintainer. I have to use custom recoveries to do that. People interpret my posts wrongly sometimes. I dunno why. Anyway, I use TWRP but after flashing a recovery or any other image file I lock my bootloader again for safety reasons. You just need to have a locked bootloader to use my tool currently... And no, u don't need to be stock. This tool just requires a locked or relocked bootloader. U can use whatever ROM u like. U just need to have a locked bootloader and my tool installs the latest firmware I integrated for your HTC 10 model. I know what I do. You should just read my posts a bit more carefully to prevent yourself from contending wrong things...
krassermensch said:
Sure I know how to unlock a boitloader. If you watch my profile you can see I'm a ROM maintainer. I have to use custom recoveries to do that. People interpret my posts wrongly sometimes. I dunno why. Anyway, I use TWRP but after flashing a recovery or any other image file I lock my bootloader again for safety reasons. You just need to have a locked bootloader to use my tool currently...
Click to expand...
Click to collapse
" I read that you can have an unlocked bootloader if your device is S-Off" quote from you
I did read it wrong. I was thinking that you meant you needed soff to unlock bootloader.\
And yes, now that I understand what you meant, with S-Off you shouldn't need to re-lock your bootloader.
xunholyx said:
" I read that you can have an unlocked bootloader if your device is S-Off" quote from you
I did read it wrong. I was thinking that you meant you needed soff to unlock bootloader.\
And yes, now that I understand what you meant, with S-Off you shouldn't need to re-lock your bootloader.
Click to expand...
Click to collapse
Yeah, dude, I think I wouldn't be able to write a batch tool with fastboot and adb if I didn't know the whole stuff. My broken Nexus 4 has teached me a lot over the last 3½ years
Just to confirm... and thanks for the tool
I have a HTC 10 and nothing has been done to it since I bought it (Stock everything) will this tool keep it that way but give me the latest OTA?
Milamber said:
Just to confirm... and thanks for the tool
I have a HTC 10 and nothing has been done to it since I bought it (Stock everything) will this tool keep it that way but give me the latest OTA?
Click to expand...
Click to collapse
You do not need this tool if you are Stock everything, unless you unlocked your bootloader.
Milamber said:
Just to confirm... and thanks for the tool
I have a HTC 10 and nothing has been done to it since I bought it (Stock everything) will this tool keep it that way but give me the latest OTA?
Click to expand...
Click to collapse
No, I could write a tool for manual OTA flashing, too, but I don't want to do that since OTAs are for stock devices which are notified about OTA updates automatically. If you want to flash OTAs quicker: there's a thread here on xda where OTA zips are shared with an explaination how to flash it manually... This tool can be used by stock device's owners but it wouldn't be necessary...
krassermensch said:
I didn't try but normally your HTC 10 would block the installation if the bootloader is unlocked. Could you try it out and report. It's a bit hard to try it out by myself currently... It will most probably report that your new firmware's flashed but it actually will not be flashed after that if your bootloader's unlocked. If it's flashed anyway it'd be perfect since I'd not have to make a backup solution in that case. But I guess that the 10 isn't different to the M9 for example when it comes to firmware flashing. I read that you can have an unlocked bootloader if your device is S-Off but those are things I haven't been able to try out so far...
Click to expand...
Click to collapse
Thanks for your explanations, now i understand your tool a bit more.
But if it only works with a locked/relocked bootloader i cant use it. Really no offense and i dont want to sound rude (!), but isnt it already a design problem? You said the tool is designed for people with non-stock ROMS, but that does imply that you have an unlocked bootloader to flash and keep your ROM and recovery up to date. To use your tool you have to relock the bootloader after flashing the ROM. But to update the ROM to a newer version you have to unlock the bootloader again via HTCDev (and loosing your data while doing this)? Sounds a bit weird to me...or did i miss something?
So which adb commands are you using? Didnt have the time to check your script yet (sorry!). Because im S-On with my bootloader unlocked an i COULD flash a signed firmware.zip i extracted from an official OTA via ADB. This wiped my boot and recovery partitions, but not data. Just had to restore the two partitions to get everything working again.
-Vulture- said:
Thanks for your explanations, now i understand your tool a bit more.
But if it only works with a locked/relocked bootloader i cant use it. Really no offense and i dont want to sound rude (!), but isnt it already a design problem? You said the tool is designed for people with non-stock ROMS, but that does imply that you have an unlocked bootloader to flash and keep your ROM and recovery up to date. To use your tool you have to relock the bootloader after flashing the ROM. But to update the ROM to a newer version you have to unlock the bootloader again via HTCDev (and loosing your data while doing this)? Sounds a bit weird to me...or did i miss something?
So which adb commands are you using? Didnt have the time to check your script yet (sorry!). Because im S-On with my bootloader unlocked an i COULD flash a signed firmware.zip i extracted from an official OTA via ADB. This wiped my boot and recovery partitions, but not data. Just had to restore the two partitions to get everything working again.
Click to expand...
Click to collapse
So you could flash the firmware-update.zip from the OTA without relocking your bootloader?
And it was really updated after that?
krassermensch said:
So you could flash the firmware-update.zip from the OTA without relocking your bootloader?
And it was really updated after that?
Click to expand...
Click to collapse
Thats what i did, bootloader was unlocked and flash successfully. I extracted the firmware.zip from an official OTA (TMOB-101) for my device and flashed it via ADB from my PC. Since the firmware.zip is signed, it can be flashed. Doesnt work with modified zips however, like the ones from sneakyghosts thread. He removed unnecessary stuff like the flash command for boot and recovery which my broke my phone initially. Thats why you need TWRP to restore them later.
As you already said with your tool, its also important here to get the right file to flash and not to skip a firmware update in between. You have to go from very old -> old -> current without skipping old.
I used the step-by-step instructions from here:
http://forum.xda-developers.com/htc-10/how-to/2016-05-27-fastboot-flashing-firmware-t3387520

n910v DE, Stock Firmware, Rooted, looking for some advice.

Hello everyone. Thanks for the immense amounts of information in this forum.
I've been reading a ton of different posts and can't seem to find a clear answer. I'm currently on a DE n910v, stock, rooted, on 4.4.4. So Bootloader is unlocked by default. I want to upgrade to MM, or some cool MM custom rom. Do I need to go through the process of flashing Safe Upgrade of 5.0 to 5.1 onto my 4.4 device, before I jump over to 6? Or can I just jump from 4.4 all the way to MM? I've read a couple of posts that mention the Bootloader being something I should be careful with, but also that now we are able to unlock the Bootloader all the way up to 6. I read the Bootloader for 5.1 and 6 are the same, so that would mean that I can just flash a 6 Safe Upgrade on top of 5.1 and the bootloader wouldn't be a problem?
Also, once I flash the upgrade, does that mean that my DE n910v will become a Retail phone, and thus I'll have to re-unlock the Bootloader? Or can I keep my bootloader unlocked through the process?
Thanks a ton if you can help me. I'll keep researching, but if anyone has any suggestions for a good path to take, and some advice on the bootloader thing, I'd really appreciate it.
Thank you!
i'm in the same boat as you. N4, DE, kitkat. If i find something i'll let you know
Quite simply... forget about DE. It's dead. Flash to full retail and follow the instructions for unlocking your BL in the sticky.
Still the best phone ever!
Axplayer said:
Hello everyone. Thanks for the immense amounts of information in this forum.
I've been reading a ton of different posts and can't seem to find a clear answer. I'm currently on a DE n910v, stock, rooted, on 4.4.4. So Bootloader is unlocked by default. I want to upgrade to MM, or some cool MM custom rom. Do I need to go through the process of flashing Safe Upgrade of 5.0 to 5.1 onto my 4.4 device, before I jump over to 6? Or can I just jump from 4.4 all the way to MM? I've read a couple of posts that mention the Bootloader being something I should be careful with, but also that now we are able to unlock the Bootloader all the way up to 6. I read the Bootloader for 5.1 and 6 are the same, so that would mean that I can just flash a 6 Safe Upgrade on top of 5.1 and the bootloader wouldn't be a problem?
Also, once I flash the upgrade, does that mean that my DE n910v will become a Retail phone, and thus I'll have to re-unlock the Bootloader? Or can I keep my bootloader unlocked through the process?
Thanks a ton if you can help me. I'll keep researching, but if anyone has any suggestions for a good path to take, and some advice on the bootloader thing, I'd really appreciate it.
Thank you!
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just download firmware 6.0.1 and flash with odin
or used this thread
https://forum.xda-developers.com/no...guide-step-step-stock-n910v-6-0-1-to-t3426905

How to get OTA updates back?

After downgrading from the 10 leaked beta to Pie by changing slots and factory resetting, I can't OTA update. I have a locked bootloader and model TA-1050. Do I need to "wipe" the other partition that 10 is installed on so that it can be used for upgrades?
Thanks in advance.
Yeah, i had the same problem after trying out some custom roms and after switching to the stock slot, i couldn't OTA anymore. The only way to fix it is to reflash the stock firmware and start updating again.. which, yes, requires a unlocked bootloader. I really recommend everyone to unlock it. I can't give you any links to the service unfortunately but all i can say is that's really easy and you don't have to anything except to accept the unlock on your phone.
Gravarty said:
Yeah, i had the same problem after trying out some custom roms and after switching to the stock slot, i couldn't OTA anymore. The only way to fix it is to reflash the stock firmware and start updating again.. which, yes, requires a unlocked bootloader. I really recommend everyone to unlock it. I can't give you any links to the service unfortunately but all i can say is that's really easy and you don't have to anything except to accept the unlock on your phone.
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How can I reflash the stock firmware? Would it be enough to update through recovery to the leaked 10 build?

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