Flashing a ROM for the first time - Upgrading, Modifying and Unlocking

Hello everyone, apologies if I'm asking stupid questions, I'm new to all this!
I've always been tempted to root / install a custom ROM but always been scared of bricking my phone. Since an old HTC Desire HD became redundant in my house, I thought I'd try rooting and flashing it.
I've managed to unlock the bootloader, install Clockworkmod and root, but I can't seem to flash a ROM. I've factory reset, cleared the cache, cleared the dalvik cache and installed the zip from the SD card. It installs successfully but when I reboot the phone it just hangs on the HTC splash screen. Fortunately I've got a backup and I can flash back to the stock ROM no problem. I've tried 3 different ROMs and all do the same thing, so I must be doing something wrong?
Any advice is much appreciated

Related

Constant boot loop when trying to root...

I have been trying a number of different methods to fully root my EVO, yet for the life of me, cannot get a new ROM to flash properly. Each time I try flashing a new ROM, I end up in an endless boot loop & must go back into my SD card & rename my stock ROM back to 'PC36IMG.zip' in order to get out of it. I have heard that this sometimes happens from not erasing the dalvik cache, yet I have tried that too & still no luck.
Does anyone maybe have some pointers on why I may be experiencing this issue each time? Any input would be greatly appreciated! Thanks!
you rename your stock rom to pc36img.zip? What is a stock rom? Where did you ever read to do that?
I don't know what directions you read, but Something is very wrong.
Well it's A stock ROM that I picked up during the many different methods of rooting I have tried... For some reason, that has been the only way to get my phone to boot after trying to flash a ROM to it...
Most of the time if you wind up in a boot loop after flashing a new rom it's because you didn't wipe data, cache, and dalvik cache before flashing.
If you are using clockwork recovery it may be your problem. It has been reported to not complete wipes fully leading to post flash boot loops. Try amon-ra recovery.

[Q] boot loop after roms install

So I have Droid incredible #1. Rooted s-off. I have before been able to flash custom roms. But I haven't tried for a while, and now I can't do any without it getting caught in a boot loop after it installs and reboots. I've tried cm7, miui, bugless beast, and probably 4 more tonight. All do it, but all let me remove battery and restore back to a backup I have. one possibility is its been so long since I've flashed a ROM, I may be on a custom ROM right now but thinking it's stock. Does it make a difference if I flash a ROM while already in another ROM? I'm not too techy but I have an idea of some stuff. It's not a big deal the phone works fine the way it is its just disappointing not being able to flash one I want. Thank you guys!
When flashing a new ROM, make sure, in recovery, you wipe data/factory reset, wipe system, and wipe boot. Then flash the ROM.

[Q] Am I missing something?

Short Questions: when I flash any ROM, besides official AOKP, my phone goes into bootloop. I'm using CWM. I do a factory reset/cache etc. then flash the new ROM, i.e. stock koodo, but they all just boot loop.
Long Story: I used to have a samsung galaxy ace, and I followed the same persedure, with CWM, and it always worked. I used CWM on my tablet, but the other touch recover has given me problems and never really worked correctly, it wouldn't even install properly. I prefer CWM. From searching around, there is some super wiper, or infamus whiper that clean the phone properly from the recover before flashing. I'm not sure if we're supose to use that before I flash a new ROM, maybe that's why its bootlooping?
What do you do before you flash a ROM? I know the ROM OP have instructions, but they end in a bootloop too.
I believe you have to be more specific if you want to get help, like the version of CWM, ROM you are trying to install and steps you are taking to insall the ROM.
Click mounts & storage, format system/data, yes. Then do all your other wiping like data and caches. Then flash ROM followed by gapps.
bobiscool07 said:
Short Questions: when I flash any ROM, besides official AOKP, my phone goes into bootloop. I'm using CWM. I do a factory reset/cache etc. then flash the new ROM, i.e. stock koodo, but they all just boot loop.
Long Story: I used to have a samsung galaxy ace, and I followed the same persedure, with CWM, and it always worked. I used CWM on my tablet, but the other touch recover has given me problems and never really worked correctly, it wouldn't even install properly. I prefer CWM. From searching around, there is some super wiper, or infamus whiper that clean the phone properly from the recover before flashing. I'm not sure if we're supose to use that before I flash a new ROM, maybe that's why its bootlooping?
What do you do before you flash a ROM? I know the ROM OP have instructions, but they end in a bootloop too.
Click to expand...
Click to collapse
You are not formatting system before installing a different base(ROM).
If you format system, data, cache, and delvik you should be good to go.

[Q] Help on loading rom

Hey everyone I have the Canadian bell carrier galaxy s3 which is rooted and I had used couple rooms such as Miui which I loved but was very buggy but recently been trying to load up roms and after it completes the install I click reboot nothing happens the screen is black so I have to boot to recovery and restore from backup tried multiple ones and same thing
1 I backed up on clockworkmod
2 performed factory reset, cleared Caches, cleared dalvik
3 installed from zip
Rebooted and nothing am I doing something wrong. Any advice would be appreciated thanks I just wanna run a stable version of the Nexus rom so I can just use it permanently
As far as I'm aware, that's an international ROM and impossible to flash.
The phone is rooted and clockwork mod to but someone told me the bootloader is Prolly not unlocked how do I find out if it's unlocked
I just tried to install the cynogen rom stable version and it said everything completed I rebooted and screened stayed black does anyone have a idea
With an issue like that I would do the following.
1. Wipe everything and I mean EVERYTHING!.
2. Return your phone back to stock/unrooted
3. Root your phone again and install your custom recovery (I like TWRP better as I've had less issue with it)
4. Before you flash whatever ROM, wipe everything again and then install your ROM
If that all doesn't work, I don't know what else will.

[Q] Bricked. Help required

Hello XDA. I'm here with a request of help regarding my Samsung Galaxy Nexus (GSM/ MAGURO). Yesterday i wanted to swap from CM11 to CM12 and backed up my apps using Titanium and backed my photos and stuff. The thing is when i finally got the rom itself and GAPPS in the device memory i performed a factory reset in the device before flashing. So i went to ClockworkMod Recovery like always and wiped dalvik but instead of wiping the cache i wiped the data and cache as many of you know its one option above of the wipe option so i deleted all the files from the device. The other issues is that i wiped my ROM and zip files that i wanted to flash. I wanted to boot into bootloader but my PC didnt recognize the device. I intalled the WUG's Nexus Root Toolkit and i did a second mistake by trying to flash stock rom and i dont have recovery now even. I can only boot into bootloader and its unlocked. No recovery, no ROM not files. Tried almost everything on my mind but it didnt help. The funny thing it i flash different ROM for years now across many deviced but for the first time i completely didnt pay any attention.
Can you guys please tell me what to do next? Thanks!

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