Questions tagged [rom-flashing]

Flashing is the process of writing a firmware image (and the root file-system) to the memory of an Android device

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144
votes
3answers
235k views

Where can I find stock or custom ROMs for my Android device?

There are several reasons to be looking for a ROM: Upgrading or downgrading your stock ROM Looking for firmware from a different region/language Flashing a custom ROM for different features, removing ...
46
votes
1answer
111k views

Why Do I Need to Wipe Dalvik Cache?

When I'm updating a custom ROM, there's always an instruction to wipe the Dalvik cache. I don't see a reason why this is necessarily. Watching the logcat while the system is booting I can clearly see ...
29
votes
3answers
9k views

What is the relation between ROM Manager, ClockworkMod and Nandroid? Which one(s) do I need?

So I understand the first thing I need to do with my phone, after rooting, is to back everything up. But I was confused about 3 of the apparently popular tools used for this. For example, is Nandroid ...
21
votes
4answers
96k views

What does “fastboot oem lock” do?

I've had my phone for months, loading with several firmware, ROMs and OTAs, without ever running this command. What does it do? What I know is that "fastboot oem unlock" displays the confirmation ...
19
votes
1answer
135k views

What is the meaning of “flashing a custom ROM”? [duplicate]

Possible Duplicate: What is the difference between: Rooting, Jailbreak, ROM, Mod, etc.? What is a custom ROM, and what does "flashing a custom ROM" mean?
18
votes
2answers
10k views

What to do before root and flash my phone?

Right now I have in my phone the stock rom and I haven't rooted it. I want to root it and change the rom. What should I do first, root or flash the rom? I don't want to lose all the configuration, ...
15
votes
2answers
23k views

Why is root access required for a custom ROM?

I'd like to be clear, and as my question indicates, I'm very ignorant of mobile devices in general so my apologies if this is common knowledge. Say I want to install a custom ROM onto a device, then ...
15
votes
2answers
178k views

What do the terms “BL”, “AP”, “CP”, and “CSC” mean in Odin?

I'm trying to Use Odin to download a OS to my phone (Trying to put Raspbian. Raspbian runs on the raspberry pi which has an ARM processor my android phone also has one so hopefully it'l work.) (does ...
14
votes
2answers
41k views

How to unpack and edit boot.img for ROM porting?

I recently downloaded this ROM for my Allview P5 (Allview P5 is the equivalent of Gionee GN700W/FLY IQ441/QMobile Noir A8). It`s called Primonex ROM and is made for the Gionee version of the phone. ...
13
votes
2answers
3k views

Why is custom recovery a prerequisite for flashing a custom ROM?

I have read in many guides that before flashing, we need to have a custom recovery like CWM installed. I am not able to understand why is this a prerequisite for flashing a custom ROM. Can I flash a ...
13
votes
2answers
4k views

What is actually happening when you hard brick a phone?

I've never hard bricked a phone. I've never seen one either. But hard bricking is everyone's worst nightmare. I wan't to know what exactly happens when you hard brick your phone. What happens that ...
13
votes
1answer
3k views

Why is there no option to choose size in TWRP's resize partition feature?

I'm trying to reflash an old Galaxy Note N5100 but I realized that the system partition is too big (~1.5GB). The current ROM uses only about 40% of the partition so I want to shrink it to make space ...
12
votes
3answers
4k views

Why are there not generic phone OS installers? [duplicate]

I am used to install and remove various operating systems in my PCs, even having several at a time. Usually, to install a new OS means: Burn the ISO to a CD/DVD/USB. Insert it. Boot. (Maybe you have ...
11
votes
4answers
1k views

Why is it that Android still can't be installed as regular OS?

Are there any technical or others reasons why Android is still a firmware and not an OS which can be just installed without a lot of hassle? Why there is no universal image which could detect ...
10
votes
2answers
126k views

Flash boot.img without using fastboot USB

So I've recently rooted my phone and tried a ROM or two. I find it really handy that you can use TWRP recovery to install another ROM from the SD card, you don't need to have it connected to a PC. ...
10
votes
2answers
3k views

Is it possible to completely brick your Android phone by using a Custom ROM?

I understand that you can completely "brick" (render unusuable) your iPhone by attempting to Jailbreak incorrectly. Whether or not this is actually the case, is it possible to do the same with your ...
9
votes
3answers
26k views

What folder does cyanogenmod store its updates?

I reverted to an older version of Cyanongenmod today. Now my phone reboots continuously. I want to try flashing on of the images that cyanogenmod downloaded in the past. What folder are they stored in?...
9
votes
1answer
57k views

How can I reboot into recovery from fastboot?

I have a phone that is bootlooping after a power failure + battery depletion during system encryption. How it got bricked isn't important here, the trouble is that I can't get into the recovery mode. ...
9
votes
2answers
5k views

How can I keep settings after flashing a ROM?

I am considering flashing my SGS to a custom ROM. I do not, however, relish the prospect of re-configuring everything. Most apps on my phone and most definitions should have no dependencies on the ...
9
votes
1answer
20k views

Why isn't Clockworkmod Recovery “Sticking”?

I've tried multiple times to flash ClockworkMod recovery onto my unlocked Galaxy Nexus (LTE\CDMA variant "toro" build) device. Each time I can boot into recovery and ClockworkMod displays. However, if ...
8
votes
2answers
1k views

How to flash Android O image in Moto G4 Plus

I have Moto G4 Plus device which has Android 7.0 - I want to flash Android O system image in Moto G4 Plus. I see https://developer.android.com/preview/download.html where system images are for Nexus, ...
8
votes
3answers
44k views

What is system partition? How its size is fixed? Can it be resized?

I have rooted LG P500 (Optimus One) running stock 2.3.3. I recently updated to unofficial CM10 (Android 4.1) and observed few serious issues. I observed that Google's My Location service was not ...
8
votes
2answers
1k views

What is involved in installing Android onto a device?

I just picked up a Viewsonic G-Tablet. It's got killer hardware specs and is running Android 2.2 but it's barely usable because of this terrible TapUI that's crippling the device. I have been ...
8
votes
5answers
14k views

Install custom ROM from Linux on a LG GT540

I'd like to install a custom ROM on my LG GT540. It looks like that in order to enable fastboot and make the whole process a lot easier, a custom ROM must be installed the first time with a program ...
7
votes
5answers
23k views

“com.android.phone has stopped” after dirty flashing CM13

After dirty flashing my OnePlus One (bacon) from CM12.1 to CM13, I am constantly getting force close dialogs popup Unfortunately the process com.android.phone has stopped Logcat is filled with ...
7
votes
4answers
25k views

How to flash a custom recovery with heimdall (without touching the main system)?

The first recommended step in the installation of CyanogenMod on Samsung Galaxy S is flashing a custom recovery like ClockworkMod or the one from Replicant with a command like: heimdall flash --...
7
votes
1answer
13k views

Should the phone be fully charged before flashing a rom?

In posts like this, and from other sources, I have heard that the handset should be fully charged before flashing or installing a customer ROM. I assume this is because the calibration for the ...
7
votes
1answer
17k views

Boot loop after flashing android 6.0 marshmallow on nexus 5 follow up

this question follows up on this one (but there are many other posts about this topic on the web.. see this reddit post and this xda developers post. I just want to approach this problem in a more ...
7
votes
2answers
27k views

When flashing a custom ROM, why do I get an error on getprop(“ro.product.device”)?

Whenever I try to flash a ROM on my ASUS Transformer Prime (tf201), I get the following error: assert failed: getprop("ro.product.device") == "tf201" || getprop("ro.build.product") == "tf201" I've ...
7
votes
4answers
40k views

Why does my Android device slow down after successive ROM updates without wiping?

I have a 32 GB Verizon Galaxy Nexus (toro). I am running Cyanogenmod 10.1 ROM nightlies and I use CyanDelta Updater to stay up to date. For a period of about 3 weeks, I updated to the latest nightly ...
7
votes
5answers
3k views

Can one avoid losing everything on a Galaxy Nexus when applying a new ROM (safely)?

The makers of most ROMs suggest that you do a full device wipe when moving from one ROM to another. I have also found this is usually good practice, so data from the previous ROM does not affect the ...
7
votes
0answers
24k views

Can't mount sdcard from Recovery Mode/Clockworkmod [duplicate]

Possible Duplicate: Why can I not access the cyanogenmod zip on my sd card? I'm trying to install a custom ROM on my rooted Galaxy S2, I've been following this guide: http://www.theandroidsoul....
7
votes
3answers
20k views

If I install a ROM that doesn't exactly match my phone, will it work at all?

As you know, manufacturers of popular mobile phones often times will release a modified " clone " version of their mainstream models. Often these clone models will be re-released models that are ...
6
votes
2answers
41k views

Must I install Google Apps again after installing a new ROM?

When I install a new ROM (cm-10.1-20130213-NIGHTLY-mako.zip) using ROM Manager, I have the option of adding another ZIP during the same reboot -- this is probably meant for the Google Apps (gapps-jb-...
6
votes
2answers
5k views

Where does Google Music store the “offline tracks”? [duplicate]

Possible Duplicate: Where does Google Music store offline songs? I have about 8 gigs of music stored within Google Music, and I recently got sick of streaming (and risking data charges), so I ...
6
votes
3answers
3k views

Flashing Nexus 5 factory image fails on writing userdata

Recently, I purchased a used Nexus 5. I would like perform a full reset, so I’m trying to flash the factory image using Google’s official instructions. However, I keep getting the message FAILED (...
6
votes
1answer
55k views

Can you install a generic ROM on any device? [duplicate]

I am relatively new to rooting and stuff. I have just rooted my android tablet. It's a Chinese tablet, not much about it is available on the internet. Can I install ROM for another device on my ...
6
votes
4answers
42k views

OTA Update on a rooted Nexus5 with Custom Recovery and Kernel

A few months back, I rooted my Nexus 5 using Towelroot, installed TWRP and ElementX Kernel. Now as the Android Lollipop update is around the corner, I don't think I'll be able to install OTA update ...
6
votes
1answer
41k views

Restore HTC One X to original ROM

My HTC One X came with ICS pre-installed, but then I upgraded it to Android 4.2.2 using CyanogenMod. Now I want to reset my phone to its original ROM, but couldn't find a way to do it. Someone ...
6
votes
1answer
14k views

Retaining applications and settings when flashing custom ROMs

The one thing that's been keeping me from flashing a custom Jelly Bean ROM on my Verizon Galaxy S3 (SCH-I535) is the fact that, unlike OTA updates, when I update my phone with a custom ROM, I'll lose ...
6
votes
2answers
125k views

How to flash a ZIP file with Odin?

I can't boot my Galaxy Tab 8.9 / P7300 anymore, but Odin still detects a USB connection. So I'm trying to flash a new ROM onto it using Odin. However all I can find on the web are ZIP archives ...
6
votes
2answers
24k views

What's the difference between Data and Internal Storage?

I came across installing ROMs, but I can't install it because I need to wipe some things ... It told me to wipe / do a factory reset ... Then, when I go to the Wipe Section of the TWRP Recovery, ...
6
votes
2answers
12k views

What's the difference between flashing Gapps on system partition vs installing from play store?

So I'm finally diving into the custom ROM world after experiencing some issues on CM12.1 on my OnePlus One. I have a question though that googling couldn't answer. If I flash only the essential Google ...
6
votes
1answer
3k views

Does flashing a custom ROM require root access?

It was recently brought to my attention that it does not. Can someone confirm this and explain what the determining characteristics are that dictate whether or not root its required to flash a custom ...
6
votes
2answers
62k views

Restoring LG Optimus 2X P990 back to stock LG software

I have flashed a lot of custom ROMs onto my phone, like CM7, kangs and such of CM9 before it's released, MIUI, and so on. I didn't want to wait till the third quarter of 2012 before I got some IC on ...
6
votes
2answers
3k views

nanddump vs fastboot

I have two identical phones. On one of them I've managed to corrupt the system partition and it won't boot. I have fastboot, root (on the one that boots), but I don't have ClockworkMod --- my phone ...
6
votes
5answers
71k views

Installing ROM from Fastboot — Can someone help?

I have a new HTC MyTouch (32A) that I tried to install a new ROM on using ROM Manager. I have done this many times (maybe 100 times), once in a while it goes wrong. Now, with this one, it can't get ...
6
votes
1answer
137 views

Where does the code pertaing to fastboot mode reside?

Is it in the primary-bootloader (on the mb), or the secondary-bootloader(on the emmc)? My motive behid the question is to understand what other codes are executed before system can get into fastboot ...
5
votes
3answers
8k views

what does “flash recovery” mean?

In the instructions for ClockworkMod Recovery for Galaxy S i9000, there is: Step 2. Flash Recovery. I don't understand what this means. Which recovery to flash? How to do this? (With a USB cable, ...
5
votes
4answers
7k views

Galaxy Note apps on stock Android

I've just ordered a Samsung Galaxy Note, and since I generally don't like manufacturer-installed bloatware (TouchWiz etc.), I'd like to reflash it with a stock ICS ROM. However, one of the main ...