Bootloader Unlock and OTA

[ryanyz10]

I'm thinking about unlocking my bootloader (well I will eventually, it just depends on how long I can last without root), but I've forgotten, is it still possible to take OTA's after you unlock your bootloader?

Thanks

 

[Jerry981028]

Probably not.

 

[5m4r7ph0n36uru]

Why shouldn't he be able to. Up until now the last four HTC devices M7, M8, M9, and 10 all received OTA updates even though the bootloader has been unlocked. There's just one new thing which startet with the change to Block-Based-OTA updates. An OTA won't install as soon as you change anything on the system partition (meaning that even mounting r/w in TWRP causes this!), due to a change in its md5 checksum.

 

[ryanyz10]

Why shouldn't he be able to. Up until now the last four HTC devices M7, M8, M9, and 10 all received OTA updates even though the bootloader has been unlocked. There's just one new thing which startet with the change to Block-Based-OTA updates. An OTA won't install as soon as you change anything on the system partition (meaning that even mounting r/w in TWRP causes this!), due to a change in its md5 checksum.

Wait, so if I flash magisk, I won't be able to take OTA?

Dang. If I just flash the stock recovery, will everything work, or will I have to restore to stock and take the OTA, then re-root?

 

[schmeggy929]

When you unlock, then flash TWRP, first thing you do is Keep System Read Only. Then make a backup of System Image, boot image. When its time for OTA. restore system image, boot img and flash stock recovery. Reboot and then take OTA. You can now fastboot boot TWRP from download mode to make a backup of stock recovery(before flashing TWRP).

 

[Kisakuku]

When you unlock, then flash TWRP, first thing you do is Keep System Read Only. Then make a backup of System Image, boot image. When its time for OTA. restore system image, boot img and flash stock recovery. Reboot and then take OTA. You can now fastboot boot TWRP from download mode to make a backup of stock recovery(before flashing TWRP).

Since TWRP can flash OTAs (firmware part of OTAs needs to be flashed separately via fastboot), restoring (and backing up) stock recovery is not mandatory.

 

[vegetaleb]

Do you think Sunshine will come to U 11 or it's un-crackable?

 

[ryanyz10]

When you unlock, then flash TWRP, first thing you do is Keep System Read Only. Then make a backup of System Image, boot image. When its time for OTA. restore system image, boot img and flash stock recovery. Reboot and then take OTA. You can now fastboot boot TWRP from download mode to make a backup of stock recovery(before flashing TWRP).

Thanks! For some reason though, when I tried to fastboot boot twrp, it would flash successfully but hang on the rebooting part. I have no idea what was going on. Pretty frustrating.

 

[oldwolf613]

No laughing now- I'm on an old Galaxy s4 & U11 seems like my next device, VZW is too much & Sprint has a 1yr free program. I have rooted B4, & used Odin, but I got into other things & I don't recall how Fastbooting works… PLS help the once again Fastbooy noob & explain. Since the Sprint program requires you bring an already-paid-for 'bring your own phone' this is a BIG up front investment & I can't imagine going w/out Root/TitaniumBU/ or twrp to save images to pull my coals out of potential fires… TIA, oldwolf

 

[tacotoy]

IMHO, fastboot commands and such to get TWRP installed is waaaaaaay easier and faster than ODIN. I actually try every few phone generations to use a samsung device, but the pains of doing updates and such through odin isn't worth it to me. Pretty much you can unlock your phone through HTC.dev and then with the bootloader unlocked you can load your own recovery like TWRP. they walk you through all the steps and everything.

 

[oldwolf613]

tacotoy, thanks for the reply; but what constitutes a FB command, & fm what program & in what status of android boot is it run? tia, oldwolf

 

[deafmetal1]

Yeah, lost... New VZW OTA out today, but since I'm unlocked with TWRP, won't install. Trying to find the zip in the cache so that TWRP can install it, no joy so far, re-reading the TWRP thread.

Edit: Found path: /data/data/com.htc.updater/files/OTA_OCEAN_WHL_N71_SENSE90GP_NA_Gen_Unlock_1.11.617.4-1.11.617.3_R2_release_.zip

Fails, says system modified, even after restore to stock.

 

[Kisakuku]

Yeah, lost... New VZW OTA out today, but since I'm unlocked with TWRP, won't install. Trying to find the zip in the cache so that TWRP can install it, no joy so far, re-reading the TWRP thread.

Edit: Found path: /data/data/com.htc.updater/files/OTA_OCEAN_WHL_N71_SENSE90GP_NA_Gen_Unlock_1.11.617.4-1.11.617.3_R2_release_.zip

Fails, says system modified, even after restore to stock.

Did you check to keep system read only before restoring the backup?

 

[schmeggy929]

tacotoy, thanks for the reply; but what constitutes a FB command, & fm what program & in what status of android boot is it run? tia, oldwolf

just google Minimal ADB and Fastboot. Download the lastest and place all your zips and images in that folder. It is a standalone program easy and pain free.

 

[oldwolf613]

Schmeggy929, thanks, that's easy enuf, but since this is gonna be (hopefully) my 'bring your phone'
to Sprint to get the free years worth of service- it's gotta be bought outright & while it's a good investment, I cannot afford to brick it & I'd rather look like a noob again than NOT ask…

 

[deafmetal1]

I just used the latest RUU that OBJ posted in the Collection Post. This time I'll make sure to do the initial TWRP recovery in read-only... HTC noob...