Stock phone, wicked bootloop - Sprint HTC One (M8)

This phone has not been rooted and has not even been bootloader unlocked, but got stuck in a wicked bootloop and I didn't know what to do so I put it in the drawer and bought a new phone. My S7 edge got that pink line syndrome, so I'm getting it sent in for repairs so I need a spare phone for work, ASAP and I know there has to be a way to get this thing working (I can't remember what firmware it's on though).
TL;DR I need to figure out how to get this phone out of a boot loop, help!

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[Q] completely lost

A friend of mine tried to root his white tmobile g1 and im not sure what he did to it. heres what im working with.
press power button goes to g1 screen and then to the factory android recovery (e2)
can wipe, factory reset and can select install update.zip
the phone wont take any update i throw at it and ive tried like 7-8 i have found here on xda. I have no idea what phone was on previously.
I CANNOT access the bootloader no matter what i do. i even went as far as to dissasemble the phone and replace the buttons (thought home might be sticking), anyone have any ideas on how i can possibly ressurect this?
without bootloader access i cant flash to downgrade. Im at a loss here and really hate getting outsmarted by a phone. I dont think its a brick... yet being i can hit stock recovery and that blue led test works.
If bootloader is truly gone, not just hidden from you, the phone can not boot. I know of no flash able update.zip for a bootloader in the stock recovery which unfortunately means this is a brick. The blue light mode is only helpful for JTAG, sorry
Sent from my Nexus 7 using xda premium
I finally managed to get the phone to boot by swapping the cables out of another phone. Weird issue but nice having a half dozen phones laying around for parts
Sent from my HTC One XL

[Q] Unlocked bootloader screen - help!!

Hi......so unlocked bootloader and rooted phone according to here - theunlockr.com/2013/03/16/how-to-root-the-motorola-razr-i/[/url]
All great but had been getting problems with the phone not recieving txts.........virgin are sending out a replacment but taking the old one back now obviously this does not bode well for me as it is rooted, especially with that riduculous warning screen motorola have incorparated..........tried using the stock.img flashboot work around to get rid of that at least, but just end up soft bricking the phone and it stays in flash mode(non signed img)...........managed to reflash it and use recover to restore phone settings but im still stuck with that problem........if i could at least just get rid of that stupid warning message on reboots i would be happy to give it back as these phones probably just get sent to a factory to be refurbed and re flashed anyway, but i feel the message just makes it far too glaringly obvious!!(the point of it i suppose)
I've seen the thread on reflashing with stock roms using rsd lite on this site but also seen it has a high chance of hard bricking the phone.
SO!!
My question(s)is........is there actually a way of getting rid of just the logo and does it def work?
Should I try and unroot the phone using the rsd lite method?
Do you think it will matter if I hard brick the phone when I give it back or could this actually be a good thing to do and just plead ignorance if Im asked and just say it suddenly died on me, therefore covering my tracks.
Does it really matter anyway since they are already sending me a new phone out?
And would I be right in assuming that this phone isn't as straightforward for rooting/unrooting as other phones out there are?
My system version is 91.2.26001.XT890.Retail.en.EU
My Kernel version is 3.0.34 [email protected]#1
Android 4.1.2
Thanks for reading if your still with me and not nodded off!!And yes I have already scoured the net and threads for answers and even phoned my mother to find out why I'm special!!
I'm not sure if this will work but you can try downgrade to ics with mattlgroff's homemade fastboots and then try to flash locked logo but this won't probably help you if JB was installed through OTA as its bootloader replaces unlocked logo back

[Q] Bricked my s5830. Any suggestions?

Help! I installed the wrong custom rom on my phone, I installed the s5830i icedroid rom on my s5830, curiously thinking it might go into a boot loop at worst but I was horribly wrong. As soon as I pressed reboot now on cwm my phone blacked out and never lighted on again. I can get it in download mode, it shows in Odin but it gets stuck in setup connection. Is there a software or something to revive the phone, I can't hand it in to samsung cause I purchased it off ebay and they want a receipt which the original owner doesn't have, or should I try a jig. What do you think guys? This phone is nearly brand new and don't want it going to waste.
Stevo001457 said:
Help! I installed the wrong custom rom on my phone, I installed the s5830i icedroid rom on my s5830, curiously thinking it might go into a boot loop at worst but I was horribly wrong. As soon as I pressed reboot now on cwm my phone blacked out and never lighted on again. I can get it in download mode, it shows in Odin but it gets stuck in setup connection. Is there a software or something to revive the phone, I can't hand it in to samsung cause I purchased it off ebay and they want a receipt which the original owner doesn't have, or should I try a jig. What do you think guys? This phone is nearly brand new and don't want it going to waste.
Click to expand...
Click to collapse
i think buddy you should use usb jig
Usb jig wont help... Nothing will help the only solution to this problem is jtagging....
Well samsung took my phone in luckily under warrenty so I should receive my phone back soon
Glad to hear that buddy. No more worries

LG Optimus- L90 D415 Stuck in Bootloop...Please HELP!!!

I have the LG L90 and recently the phone just wont boot past the bootloader. It kept stopping at the T-Mobile boot image. I look up how to reset the phone and that's what i did. Now the phone is stuck at the LG boot logo and wont turn on. Either way the phone was still stuck in a bootloop.
Now I've ever done anything to the phone, no USB Debugging, No rooting, No bootloader unlocking. So could someone please help me to figure this out. I'm trying to figure out how to make this thing work again, whether by flashing or what but the problem is the phone has never been rooted or tampered with.
What did you do? Are you rooted? Talk to Tmobile. They will gladly take it back and give you a new one because it sounds like a defect. They took back mine even when I was rooted

Issue with Note 4 possible bad memory?

(While I was in a rooted DOK2 FW - Tmobile SM-910T3)
So heres the deal, trying to walk around I wanted to mock my location but was interrupted and placed my phone in my pocket which "locked" the bootload.
I managed to flash the stock image and unlocked the bootloader loaded TWRP and restored from my backup
Now this is where hell starts. It looked fine until I rebooted my phone.
Symptoms:
On a reboot the phone will not turn back on after I opt to reboot my phone
At this time the phone will not turn back on (i noticed this when i rebooted while plugged in the charging light was not on) I pull the battery for a few minutes to turn it back on
When I power the device back on sometimes it is stuck in the Bootloader Screen (unable to get into recovery and download) so I need to pull battery wait and turn back on
When the device does boot I can get into recovery and download mode on when it boots properly
Sometimes its stuck on the tmobile screen and I need to reboot it.
When the phone is operational it will occasionally lock up and I will need to wait a few minutes before the device is able to respond.
Any ideas what I can do? I had thought flashing a stock rom (from sammobile) would fix the boot issues
As of now:
I've recently flashed to the new Tmobile marshmallow stock via odin. I am still seeing these symptons. I'm currently installing the Maximum Overdrive Rom hoping it will fix some issues
Still seeing some of the same issues. Stock romantic and a deflated romantic did nothing. Is there a way to reflash a bootloader?
I'm having the same issues....I have odined back to stock dok2 twice....I think the pe3 bootloader files are floating around the forums somewhere...http://forum.xda-developers.com/showpost.php?p=67514260&postcount=4
When my N4 boots up I occasionally get the emmc boot error...I brought it to tmobile and explained the issue to the rep. She brushed it off as being my battery. I know its not my battery as its a 3 month old 10000mah zerolemon. So I'm going to just limp this phone along until its time to jump to the Note 7. I've been flashing roms since the golden era of windows mobile/palm os days and on android since my G1...And some rookie rep who doesn't even know how to put a phone in recovery or download mode tries to brush it off as the battery.... My girl has the sprint note 4 and hers did the same thing, she took it to a store the rep ended up giving her a fully functional refurb... (which is the right thing to do if the phone has emmc failures) Anyways I hope you have better luck than I've had
i had the exact same issue as you guys started 2 months ago got worse overtime now my emmc is dead it wont write anything or even go into recovery or download i had tried all types of roms stock firmwares even took the phone apart swapped the power button and bought a new battery now my memory is dead and i can actually say its the emmc chip, seems to me these note 4s are starting to die i bought mine when it first came out in 2014 kind of feel ripped off but best phone i ever had imo

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