Develop Bugs

[Q] Cannot boot into Recovery!!

So you probably see these types of threads all the time, but this one is different--
So the phone is a T-Mobile G2, Yes, It is Rooted, and S-OFF.
Long story short, I rooted the phone fine, but I cannot reboot into recovery.
I have the newest CWM flashed. It is version 3.0.0.5. When I try to boot the phone into recovery, it simply gets stuck on the HTC Logo screen. But, it is not bricked, but if I remove the battery, and put it back in, the phone boots and its fine. One more time. The phone is S-OFF and rooted.
The only thing I can do is flash CM 2.5.1.3...... 2.5.1.4+ do not work.
I just want to know WHY its doing this. Its my friends G2 and I have rooted mine the SAME exact way, and its fine. I have tried factory resetting it, but it doesn't work.
PLEASE TELL MY WHY.
EDIT*
I'm trying to do this process in ROM Manager- I also have tried flashing it more than once.

Brazildiogo732 said:
So you probably see these types of threads all the time, but this one is different--
So the phone is a T-Mobile G2, Yes, It is Rooted, and S-OFF.
Long story short, I rooted the phone fine, but I cannot reboot into recovery.
I have the newest CWM flashed. It is version 3.0.0.5. When I try to boot the phone into recovery, it simply gets stuck on the HTC Logo screen. But, it is not bricked, but if I remove the battery, and put it back in, the phone boots and its fine. One more time. The phone is S-OFF and rooted.
The only thing I can do is flash CM 2.5.1.3...... 2.5.1.4+ do not work.
I just want to know WHY its doing this. Its my friends G2 and I have rooted mine the SAME exact way, and its fine. I have tried factory resetting it, but it doesn't work.
PLEASE TELL MY WHY.
Click to expand...
Click to collapse
If you can boot up normally, load rom manager (download from market), and go to install alternate recovery, and install any alternate recovery. Then when that is complete, go back and install the Clockwork recovery version you want on top of the alternate.
What happens is SOMETIMES recovery will get messed up while installing, and you'll get exactly that, loop at the HTC screen.
If you cannot reflash an old, then the proper recovery through Rom Manager, you can do it via fastboot with your computer and USB, there are a few guides on the developer forum on how to do that. If you need i can try to dig up the fastboot recovery method guide later... but really, if you can boot up, Rom Manager is your best/easiest bet.

Yeah, I'm trying to do it using ROM Manager. and It still doesnt work. Ive rooted- unrooted and did everything, idk what I'm doing wrong. I tried flashing the new recovery like 4 times, it doesn't work for me. Thanks for the reply!

removing root and locking the bootloader help

right
i am going to have send my a100 back. the touchscreen issue is driving me nuts and i cant keep it in its crrent state. i am shipping it back to the retailer for a full refund rather than pay to ship it back to acer. at the end of the day i cant be doing with the hassle. so i need to know how i go about unrooting it and locking the boot loader back up and basically restoring it to stock.
i will have a read of the forums but with work being all rather busy and a deadline for return i am a little pushed for time so if anyone out there knows and would be kind enough to link me to a thread or simply tell me that would be appreciated.
cheers

You could flash stock boot loader and flash an official ota
sent from your future.

das_webos_transformer said:
You could flash stock boot loader and flash an official ota
sent from your future.
Click to expand...
Click to collapse
If hes just rooted just run the ota it'll do boot loader too. He didn't mention a custom rom or recovery, but if he does then doing it in that order will lock it up. Stock recovery then stock rom then bootloader last. Basically stock recovery > ota then you're fine.
Tapatalked from my Galaxy S II.

hey guys thanks for the replies.
ok sorry i should have said i have unlocked the boot loader rooted it and instaled twrp recovery. i never got round to putting a rom on it (i have only had it about 6 or 7 days), i removed root by accident when i wiped it but obviously the unlocked bootloader and recovery remained. so with this in mind then exactly what would i do?
flash stock rom>flash stock bootloader?
would that also remove recovery?
edit sorry i didnt remove root when i wiped it i merely lost the superuser app so i am actually still rooted.

rockmonkey1973 said:
hey guys thanks for the replies.
ok sorry i should have said i have unlocked the boot loader rooted it and instaled twrp recovery. i never got round to putting a rom on it (i have only had it about 6 or 7 days), i removed root by accident when i wiped it but obviously the unlocked bootloader and recovery remained. so with this in mind then exactly what would i do?
flash stock rom>flash stock bootloader?
would that also remove recovery?
edit sorry i didnt remove root when i wiped it i merely lost the superuser app so i am actually still rooted.
Click to expand...
Click to collapse
Root occurs in system, which isn't affected by wipes, so yeah SU is still there, just the app to control it is gone, which you discovered already.
As you have twrp, unlocked a200 bootloader but stock rom, the process is pretty simple.
Get the ics ota, name it update.zip place it on the root of the external sd card, no folders.
Power on holding volume - (closes to lock switch) and press power for 3 seconds, once the text starts up in the upper left corner, let everything go.
Should install stock rom, which will do the following:
1 wipe cache
2 flash new rom system
3 "flash" a100 bootloader
4 reboot into android
5 flash over twrp and place stock recovery in place
This will all occur on it's own once you get it loading up update.zip
5 only happens if it boots and is completely stock with /system/etc/install-recovery.sh intact.
3 can happen as long as it uses the update.zip
2 can fail, if it does but proceeds to flash bootloader twrp will be locked out, however a stock rooted rom as you have will still boot, and we can cover replacing the recovery with stock at that point if needed.
1 always happens, regardless of any other steps being met or finished.

mate thanks for helping here. i had to fix my phone which died after a bad flash of a back up in cwm... long story wont go into it... but it did eat up a good one or two days. so i havent gotten round to sorting anything out here with the tablet.
now i am going to try to flash the build prop and install one or two roms. flex reapers and cm10 all look good and i am hoping that that combination with maybe with over clocked kernal will be enough to fix the screen problem.
now i know it is unlikely if it is a hardware fault but i need to try because i would like to keep this tablet and the place i got it from havent got any more. it was pretty inexpensive at 127 pounds and i will be unlikely to find any other store that has stock at that price so if it goes back it goes back for good. hence me wanting to try to keep it.
so i am gonna flash the roms and the build prop now. if it doesnt fix it then i will be back for a little help in reverting it back to stock. by the way where can i find the ota ics release?
i will have a look on the forum i am sure it has to be here somewhere but just in case!!!
edit: got them edit no i havent i cant download them? the site is offline... anywhere else they can be gotten from? maybe acers website? will check now. just realised i have the stock rom installed! will make a back up now.
http://forum.xda-developers.com/showthread.php?t=1307046
so you reckon it could be as simple as simply flashing the official rom to take the tablet all the way back to stock including the locking of the bootloader and removing the recovery? that would be nice and simple and easy which will be a real welcome change from the norm. fingers crossed that is all that is needed.

To go stock that is all that's needed. In vaches thread there is one decrypted on a drop box, that's our only one unless vache brings his stuff back online.
Well there is the service ROM which will be stock, but not what is supposed to be there. At first glance its stock though. Wouldn't suggest it for a return.
Tapatalked from my Galaxy S II.

ok this post was confusing. i am running stock ics at the moment. the bootlaoder is unlocked i have root and the recovery is twrp.
so i have downloaded the update found in the drop box folder here.
http://forum.xda-developers.com/showthread.php?t=1307046
it was already called update and it has a zip extension. so it is update.zip.
i have put it in both mnt/external_sd/ and also /sdcard/ none of them work.
all i get when i hold the volume and power button is taken into twrp recovery.
i thought it flashed automatically? can i flash it through recovery? bit worried about doing that because if it removes recovery while it is flashing i will be screwed.
will wait here now until someone can confirm what i am doing wrong because i cant afford to brick it.
i can be a bit to smart for my own good at times.
could the problem be that i am already running the latest ics official release? should i flash a custom rom? just throwing out some ideas here because i aint got a clue why it hasnt worked.

anyone know? i need to ship this back to the retaler tomorrow and i would prefer not to do it with an unlocked bootloader and custom recovery.
things is i am stumped because i thought i had done all that should be needed to flash the update and the only thing i can think of is because the firmware is up to date (possibly even newer than the update.zip) it wont update.

rockmonkey1973 said:
anyone know? i need to ship this back to the retaler tomorrow and i would prefer not to do it with an unlocked bootloader and custom recovery.
things is i am stumped because i thought i had done all that should be needed to flash the update and the only thing i can think of is because the firmware is up to date (possibly even newer than the update.zip) it wont update.
Click to expand...
Click to collapse
In that case flash the stock recovery and run the bootloader for a100 that came in the unlock boot loader zip. Run the a100 script instead of the a200 script, that will lock it. Do this after stock recovery flashing.
Or, put back install-recovery.sh and reboot, that will replace the stock recovery then run the a100 boot loader script. You'll still be rooted but try update.zip again after stock recovery and boot loader are done.
Tapatalked from my Galaxy S II.

pio_masaki said:
In that case flash the stock recovery and run the bootloader for a100 that came in the unlock boot loader zip. Run the a100 script instead of the a200 script, that will lock it. Do this after stock recovery flashing.
Or, put back install-recovery.sh and reboot, that will replace the stock recovery then run the a100 boot loader script. You'll still be rooted but try update.zip again after stock recovery and boot loader are done.
Tapatalked from my Galaxy S II.
Click to expand...
Click to collapse
mate you have been incredibly helpful. i mean seriously.
i will do as you suggest however i have a question how am i supposed to flash these files? do i do it through recovery? please dont say adb because i have never used that program dont know why i just tended to stay away from it zips and nandroids always seemed so much easier.
i have edited this post due to being slightly confused and thought it best to save the gushing praise until after the tab is stock! sorry mate i hate being a pain and i am reading all i can on locking the bootloader but there doesnt seem to be any guide i can follow. most of the threads i have found are for bricks and my tab is certainly not beicked... and i want it to stay that way.

rockmonkey1973 said:
mate you have been incredibly helpful. i mean seriously.
i will do as you suggest however i have a question how am i supposed to flash these files? do i do it through recovery? please dont say adb because i have never used that program dont know why i just tended to stay away from it zips and nandroids always seemed so much easier.
i have edited this post due to being slightly confused and thought it best to save the gushing praise until after the tab is stock! sorry mate i hate being a pain and i am reading all i can on locking the bootloader but there doesnt seem to be any guide i can follow. most of the threads i have found are for bricks and my tab is certainly not beicked... and i want it to stay that way.
Click to expand...
Click to collapse
Well....adb. You used it before with the scripts to unlock the boot loader.
http://forum.xda-developers.com/showthread.php?p=23868002
Right above the download it mentions running the a100 script to revert to locked a100 boot loader.
Only do this with a stock ROM installed!
After that it'll be manually installing the recovery with fast boot or replace the stock /system/etc/install-recovry.sh
If it was just renamed, then name it back. If it was deleted it'll need replaced, it will revert to stock recovery on its own after booting with it in place.
Tapatalked from my Kindle Fire - Jellytime AOSP

thanks again my friend. funny i never realised i was flashing stuff with adb when i was doing things like that!
i always thought adb was a command line interface like say ssh and that you needed to use some sort of software like putty.
anyways just to bring this to a close. i never got time to flash it back to stock. i simply left the official ota on and reset it. have already received the refund so all is good. shame i am unlucky with tablets. i had a faulty archos 80 g9 and then this. guess i will hold off for a while maybe until i feel my luck has changed for the better.
cheers again mate.

[Q] Flashed incorrect kernel on One M8 no screen response whatsoever

I tried flashing a kernel believed to be ExcaliBur on my HTC One M8, but as soon as i rebooted the screen was black yet still on.
I know it's not bricked completely because i can still hear sounds, feel vibrations and see the LED's work properly. Basically I have a "blind" phone. I have began to look into a way to capture my screen one frame at a time with my computer.
Please help me!
Running Android 4.4.4 Cyanogenmod Snapshot 11
T-Mobile
TWRP 2.8.0.3

Tried getting back to bootloader and flashing back the boot.img you had before flashing new kernel?
If the device still has "some" interaction then you should be able to connect it to PC and use the adb reboot bootloader command to boot it into bootloader.

BerndM14 said:
Tried getting back to bootloader and flashing back the boot.img you had before flashing new kernel?
If the device still has "some" interaction then you should be able to connect it to PC and use the adb reboot bootloader command to boot it into bootloader.
Click to expand...
Click to collapse
I actually DID just get into my bootloader. I had to mess around by pressing the buttons until i finally got it to boot into bootloader. Now I flashed a stock kernel for now, I always keep it in my SD Card.
I found you can use a program called Wondershare MobileGo for Android that can read whatever is on your phone if you happen to be "blind" like me.
P.S. I really need a kernel for CMod that has fast charge. Currently ExcaliBur is off the list.

I haven't heard of Wondershare MobileGo, seems interesting.
I can't help with custom Kernels, I always stick with stock, haven't flashed a custom kernel since way back with my S3. Sorry, can't help there.

Thanks anyways! Notice I got my phone working again! I flashed the stock, and then reflashed CMod and nothing was wiped. Interestingly...
Sent from my One M8 using XDA Free mobile app

That's quite lucky, any other time I've heard of this happening the phone's died completely.

OMG,i am so lost!

tried to get OTA 5.0.1 today. woudn't take. I have (had)rooted,s-off,bootloader unlocked. Now i somehow wiped everything off.No OS, no recovery. No idea how to begin again. Screen is on white with HTC logo and Powered by android showing. won't power down. Any ideas?

Try holding volume up with power button down for ten seconds.
---------- Post added at 03:47 PM ---------- Previous post was at 03:46 PM ----------
Are you sure you wiped everything, or are you just assuming this based on the screen you are seeing?

update
ok, i held power up/power for 20 seconds, then power down/power and got into twrp recovery. there is NOTHING else on the phone. No OS at all. what's the best way to proceed? PC wont pickup device,so adb cmd prompt isn't working. thanks

stlsports said:
ok, i held power up/power for 20 seconds, then power down/power and got into twrp recovery. there is NOTHING else on the phone. No OS at all. what's the best way to proceed? PC wont pickup device,so adb cmd prompt isn't working. thanks
Click to expand...
Click to collapse
What I would do is pop out my MicsoSD card, back everything up on it then download my original OS I WAS running before I blew it up onto the SD card and attempt to flash it. From there I'd hit up this thread http://forum.xda-developers.com/showthread.php?t=2714456 to see if I could glean how to return back to stock. I'm sure someone will yell at me if you shouldn't do it, not that am I saying you should do that, I'm just saying what I'd do.

i was able to get lollipop dream on my sd card and flash it. WHEW! but, i really want stock rooted lollipop. i actually enjoy sense 6.0 a little bit. gonna keep at it..
thanks.
Theoriginalgiga said:
What I would do is pop out my MicsoSD card, back everything up on it then download my original OS I WAS running before I blew it up onto the SD card and attempt to flash it. From there I'd hit up this thread http://forum.xda-developers.com/showthread.php?t=2714456 to see if I could glean how to return back to stock. I'm sure someone will yell at me if you shouldn't do it, not that am I saying you should do that, I'm just saying what I'd do.
Click to expand...
Click to collapse

stlsports said:
i was able to get lollipop dream on my sd card and flash it. WHEW! but, i really want stock rooted lollipop. i actually enjoy sense 6.0 a little bit. gonna keep at it..
thanks.
Click to expand...
Click to collapse
Well now that you're up and running, you can go through the process of flashing the old stock rom (not the lollipop rom), unroot and restore the stock BL, then take the OTA update and I believe you should be able to reroot if you wanted to.

Theoriginalgiga said:
Well now that you're up and running, you can go through the process of flashing the old stock rom (not the lollipop rom), unroot and restore the stock BL, then take the OTA update and I believe you should be able to reroot if you wanted to.
Click to expand...
Click to collapse
couldn't he just flash the most current RUU?

deepsouth06 said:
couldn't he just flash the most current RUU?
Click to expand...
Click to collapse
Maybe, I'm not sure. I was able to because I was coming from just the stock rom rooted with xposed on it I know that at the least BL needs to be stock and match the version of stock ROM you nandroided back on. If you're using RUU I don't think unrooting is important. Whether or not you have to lock the BL I'm not aware of myself but it's an easy process. Below is what I did.
Being on a rooted stock ROM running xposed I downloaded drivers, BL that matched my ROM, ADB/fastboot current RUU I was on and latest RUU.
I was on 4.4.4, I verified the version of my ROM and got the matching BL. I've heard rumors that mismatching BL/ROM will cause an error.
FIRST I booted into my custom recovery and did a back up. Better safe than sorry right?
booted into fastboot and installed the recovery using fastboot flash recovery {recoveryname}.img
locked BL using "fastboot oem lock" rebooted my phone into the OS then fired up the latest[/B ]RUU and let it run and it ran just fine.
I then unlocked my BL again and installed the latest version of TWRP, reinstalled root and my apps. phone runs really well. I need to start going through and freezing apps but hey we skip those things at 2am don't we?
Mind you I have S-off on my phone and I didn't mess with S-off at all.
I would surmise that if you're experiencing getting the latest RUU to install that you might want to make sure your BL and rom number match and if that doesn't work try flashing the RUU that you're currently running and then the latest RUU.
I consulted this list to verify my version I was running, I happened to be running at the time 3.32.531.2 so I hunted for that BL.
https://support.t-mobile.com/docs/DOC-10366

Stuck in bootloop, unable to get to recovery or get computer to recognize....

Hi all,
My m8 is rooted, with CWM. I was having issues with it, so I decided to wipe it and flash the marshmallow GPE update to see if that would help (since my OTA alert was there). However, it's now stuck in a bootloop, and I can't get into recovery, or get a computer to recognize it.
If I hold the power and volume buttons down, it will restart, I can get the white screen with HTC logo and red writing stating the build is for development purposes only, but after that it goes right to the loading screen again, instead of going into recovery like it normally would (and like it's done a thousand times for me in the past). I'm not the techiest person, but I thought I'd done enough research on this to do it properly.. apparently not I've tried everything I (and google) can think of, but everything seems to rely on getting to recovery to flash a new rom/wipe the cache/etc or hooking it up to a computer, neither of which I can do. Do I have any other options? This is a "new" phone (bought it refurbished from tmobile to replace my old m8 which I also had issues with... obviously a bad choice), and the thought of buying a new phone again just really kills me. Any help would be SO greatly appreciated. Thanks!

butneveragain said:
Hi all,
My m8 is rooted, with CWM. I was having issues with it, so I decided to wipe it and flash the marshmallow GPE update to see if that would help (since my OTA alert was there). However, it's now stuck in a bootloop, and I can't get into recovery, or get a computer to recognize it.
If I hold the power and volume buttons down, it will restart, I can get the white screen with HTC logo and red writing stating the build is for development purposes only, but after that it goes right to the loading screen again, instead of going into recovery like it normally would (and like it's done a thousand times for me in the past). I'm not the techiest person, but I thought I'd done enough research on this to do it properly.. apparently not I've tried everything I (and google) can think of, but everything seems to rely on getting to recovery to flash a new rom/wipe the cache/etc or hooking it up to a computer, neither of which I can do. Do I have any other options? This is a "new" phone (bought it refurbished from tmobile to replace my old m8 which I also had issues with... obviously a bad choice), and the thought of buying a new phone again just really kills me. Any help would be SO greatly appreciated. Thanks!
Click to expand...
Click to collapse
One big problem with what you are doing is you are using CWM. That recovery hasn't been maintained in about two years now. It's obsolete. You need to flash the latest TWRP instead. Also, you should make sure your firmware is up to date. You can find that in your bootloader listed under "OS"
Let's get you out of your bootloop first.
Hold down power + vol up until your phone reboots. AS SOON AS THE SCREEN GOES BLACK switch from holding vol up to vol down. This will take you to your bootloader. Check your OS version. It should be 6.xx.xxx.x
Now that you are in bootloader, flash TWRP with fastboot.
When that is done fastboot reboot-bootloader and go to your phone. Navigate to hboot on the bootloader menu, and you will have the option to boot to recovery. Flash the ROM again, and all should be working for you.
Go to this link to get TWRP. The downloads for the M8, and instructions on how to flash it in fastboot are all there for you.
Good luck!

xunholyx said:
One big problem with what you are doing is you are using CWM. That recovery hasn't been maintained in about two years now. It's obsolete. You need to flash the latest TWRP instead. Also, you should make sure your firmware is up to date. You can find that in your bootloader listed under "OS"
Let's get you out of your bootloop first.
Hold down power + vol up until your phone reboots. AS SOON AS THE SCREEN GOES BLACK switch from holding vol up to vol down. This will take you to your bootloader. Check your OS version. It should be 6.xx.xxx.x
Now that you are in bootloader, flash TWRP with fastboot.
When that is done fastboot reboot-bootloader and go to your phone. Navigate to hboot on the bootloader menu, and you will have the option to boot to recovery. Flash the ROM again, and all should be working for you.
Go to this link to get TWRP. The downloads for the M8, and instructions on how to flash it in fastboot are all there for you.
Good luck!
Click to expand...
Click to collapse
You are a lifesaver! Didn't even think about trying to switch from volume up to down, but that did it.
Ok, so now I have TWRP, but my OS was definitely NOT 6 (it was 4.something). I assume that was one of my issues? Honestly, at this point, I just want to go back to stock lollipop, like I had before.. I bounced around a few stock marshmallow roms before my bootloop (realized I hated GPE, that HTC transfer didn't support my device on those versions, CWM wouldn't restore any of my backups--which now makes sense, etc), so I think I just want to quit messing with it at this point and count my blessings. I've had issues finding stock roms though, obviously. Could you point me in the right direction? I just want stock tmobile lollipop, with sense. I didn't think it'd be so difficult, but I'm clearly not very up-to-date on this stuff. Thanks SO much again!

butneveragain said:
You are a lifesaver! Didn't even think about trying to switch from volume up to down, but that did it.
Ok, so now I have TWRP, but my OS was definitely NOT 6 (it was 4.something). I assume that was one of my issues? Honestly, at this point, I just want to go back to stock lollipop, like I had before.. I bounced around a few stock marshmallow roms before my bootloop (realized I hated GPE, that HTC transfer didn't support my device on those versions, CWM wouldn't restore any of my backups--which now makes sense, etc), so I think I just want to quit messing with it at this point and count my blessings. I've had issues finding stock roms though, obviously. Could you point me in the right direction? I just want stock tmobile lollipop, with sense. I didn't think it'd be so difficult, but I'm clearly not very up-to-date on this stuff. Thanks SO much again!
Click to expand...
Click to collapse
Okay. 4.xx firmware will actually work with 6.xx ROMs, but I'll instruct you on getting back to stock lollipop.
Backup anything important to you, such as photos and stuff, because this is going to wipe your phone. Don't worry about the apps. Google takes care of that for you. You might lose a little data from the apps, but if you want to be completely stock, this will do it. (you will probably get a prompt to update to Marshmallow via OTA eventually afterwards, but it will be the official stock version of it)
Also, this is assuming that you are T-Mo US, not a European T-Mo version.
Download this RUU onto your PC.
When the download if finished, hook up your phone and get into fastboot. You'll have to re-lock your bootloader first. The command is fastboot oem lock, then fastboot reboot
After you have re-locked your bootloader, double click on the RUU download and follow the prompts.
If there are problems with the RUU flash, try again while booted to bootloader. Sometimes that is needed for some reason.
That's it. You are now on stock T-MoUS 4.20.531.4
Good luck!

xunholyx said:
Okay. 4.xx firmware will actually work with 6.xx ROMs, but I'll instruct you on getting back to stock lollipop.
Backup anything important to you, such as photos and stuff, because this is going to wipe your phone. Don't worry about the apps. Google takes care of that for you. You might lose a little data from the apps, but if you want to be completely stock, this will do it. (you will probably get a prompt to update to Marshmallow via OTA eventually afterwards, but it will be the official stock version of it)
Also, this is assuming that you are T-Mo US, not a European T-Mo version.
Download this RUU onto your PC.
When the download if finished, hook up your phone and get into fastboot. You'll have to re-lock your bootloader first. The command is fastboot oem lock, then fastboot reboot
After you have re-locked your bootloader, double click on the RUU download and follow the prompts.
If there are problems with the RUU flash, try again while booted to bootloader. Sometimes that is needed for some reason.
That's it. You are now on stock T-MoUS 4.20.531.4
Good luck!
Click to expand...
Click to collapse
Thanks so much. I still have everything backed up from before (well, my CWM nandroid is useless now, but I'll live). I read about the RUUs originally when I was trying to get the stock rom, but some people were saying you had to be S-OFF for them. I'm S-ON--is that a problem?

butneveragain said:
Thanks so much. I still have everything backed up from before (well, my CWM nandroid is useless now, but I'll live). I read about the RUUs originally when I was trying to get the stock rom, but some people were saying you had to be S-OFF for them. I'm S-ON--is that a problem?
Click to expand...
Click to collapse
No it's not a problem, and something that I have already assumed.
If you were S-Off, you wouldn't need to re-lock your bootloader before running the RUU.exe
Those "some people who were saying" are incorrect.

butneveragain said:
I read about the RUUs originally when I was trying to get the stock rom, but some people were saying you had to be S-OFF for them.
Click to expand...
Click to collapse
Yeah, people need to stop saying that. Its completely false. RUU is an official HTC recovery tool, and its intended to work on stock (s-on) devices.
You only need s-off to flash RUU as unintended by HTC, such as:
- flash an older version RUU than what is on the phone ("downgrade")
- Change CID/MID to flash another version's RUU
- Flash RUU with unlocked bootloader
- Flash a hacked/unsigned RUU

xunholyx said:
One big problem with what you are doing is you are using CWM. That recovery hasn't been maintained in about two years now. It's obsolete. You need to flash the latest TWRP instead. Also, you should make sure your firmware is up to date. You can find that in your bootloader listed under "OS"
Let's get you out of your bootloop first.
Hold down power + vol up until your phone reboots. AS SOON AS THE SCREEN GOES BLACK switch from holding vol up to vol down. This will take you to your bootloader. Check your OS version. It should be 6.xx.xxx.x
Now that you are in bootloader, flash TWRP with fastboot.
When that is done fastboot reboot-bootloader and go to your phone. Navigate to hboot on the bootloader menu, and you will have the option to boot to recovery. Flash the ROM again, and all should be working for you.
Go to this link to get TWRP. The downloads for the M8, and instructions on how to flash it in fastboot are all there for you.
Good luck!
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My phone is stuck on boot screen... How can I turn off the device if my vol+ button does not work?