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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60
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2answers
36k 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, ...
25
votes
1answer
50k 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 ...
22
votes
3answers
6k 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 ...
14
votes
2answers
5k 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, ...
12
votes
1answer
29k 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?
11
votes
2answers
8k 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 ...
10
votes
2answers
2k 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 ...
8
votes
2answers
773 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
1answer
13k 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
3answers
14k 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 ...
7
votes
2answers
1k 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 ...
7
votes
2answers
3k 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 ...
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
23k 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: ...
6
votes
1answer
4k 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 ...
6
votes
4answers
4k 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 ...
6
votes
1answer
1k 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 ...
5
votes
3answers
23k 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 ...
5
votes
3answers
4k 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 ...
5
votes
2answers
3k 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 ...
5
votes
4answers
1k 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 ...
5
votes
1answer
247 views

No access to Android Market after loading Ice Cream Sandwich

I followed the instructions on the source.android.com website to download, build, and install Android OS v4.0.3 on a Nexus S. Everything seemed fine, I could take pictures, access WiFi to surf the ...
5
votes
2answers
11k views

Best way to update to latest versions of custom ROMs?

What is the easiest and most time effective way to update to different builds of a custom ROM ? Say for example, having an Infuse, I follow the builds of Cyanaogenmod 10 and they release updates ...
5
votes
1answer
4k views

what is a bootloader unlocked phone?

What is a bootloader unlocked phone? How we can make use of it while creating or flashing ROMs? What are advantages of unlocked bootloaders over locked bootloaders? Why does not any OEM generally ...
5
votes
1answer
473 views

What are some of the effects of flashing my HTC Desire with cyanogenmod?

Recently rooted my HTC Desire (GSM) and considering flashing it with cyanogenmod. However I have a few quick questions related to flashing with cyanogenmod (or any ROM in general I suppose). Firstly, ...
5
votes
2answers
10k views

How can I flash back to the stock rom for HTC EVO 4G/Supersonic using just the phone and clockwork mod recovery and/or rom manager?

I need to flash back to my stock rom for just a few minutes to get my GPS working again ...
5
votes
2answers
42k 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 ...
5
votes
0answers
1k 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 ...
4
votes
2answers
19k 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 ...
4
votes
4answers
495 views

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

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 ...
4
votes
3answers
15k 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 ...
4
votes
1answer
220 views

Is there a way to get detailed information on why an OTA update fails?

I'm trying to figure out why my OTA update is failing. I have unrooted my Droid Bionic, and did a factory reset. It starts to update, then reaches about a quarter of the way and stops. It just ...
4
votes
1answer
19k 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 ...
4
votes
2answers
32k 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. ...
4
votes
1answer
616 views

Install default Android 2.2 / 2.3 on Optimus One

I have this LG Optimus One P500h and I was thinking about formatting and installing the default/original Android 2.2 (2.3 would be great) since LG modified the homescreen, keyboard and other stuffs. ...
4
votes
2answers
3k views

Flash a smartphone with vanilla Android ROM

Is it possible to flash a smartphone like the Samsung Galaxy SIII or an LG Optimus 4X with a vanilla Android ROM like the one that has been flashed on Galaxy Nexus or Motorola phones (I think)? I am ...
4
votes
2answers
1k views

How to flash Samsung devices from a GNU/Linux host running on ARM architecture?

To flash a Samsung Galaxy S (where do not have root access in the currently running OS, and with a stock recovery) with a new firmware (OS), I need to connect it with a USB cable to another computer ...
4
votes
2answers
296 views

Not able to flash/factory reset Galaxy Nexus.; restores to one particular backup every reboot

My Galaxy Nexus will not factory reset. I tried to flash many images. I deleted the gallery contacts, but it restores to a restore point on each reboot. Currently, it is having "yakju-jzo54k". I am ...
4
votes
0answers
434 views

Extracting the radio firmware image from an Android phone

How do you pull radio images off an Android device? Is there any way to do this?
3
votes
1answer
1k views

Rooting HTC Evo on Froyo 2.2 and installing a custom rom

I just received the latest update from HTC. They have installed more bloatware on my phone and I've finally had enough. I want to root. I found this rom and this guide on how to root. But the root ...
3
votes
1answer
4k views

Do I need to root my phone before installing CM on my S3

Previously I've needed to root my phone before flashing any ROMs on it. Now I have a new s3 and I'd like to install CM on it. However, this installation guide does not mention the need to root the ...
3
votes
2answers
10k views

How to upgrade Android 2 to 3 or 4 on GT-I9000?

All is in the title. I have got a GT-I9000 (samsung galaxy S) and I do not understand why I cannot upgrade the android version ? Why an android version is linked to a specific phone ?
3
votes
1answer
311 views

Does the bootloader need to be unlocked to flash my phone

I am not able to relate between bootloader unlocking and flashing. From what I understand, when I flash my phone with a custom ROM, it writes to the /boot partition and hence the bootloader has to be ...
3
votes
1answer
476 views

Will flashing ROMs multiple times degrade the performance of phone?

Will flashing ROMs multiple times degrade the performance of phone? If yes, is it possible to retain the performance? If no, then is there any procedure or sequence to flash a ROM on a Samsung Galaxy ...
3
votes
1answer
595 views

Relationship between a recovery and a ROM

As far as I understand: Recoveries (e.g. ClockworkMod) can be used, among other things, to install new versions of the Android OS, like custom ROMs (e.g. CyanogenMod) by updating the ROM section which ...
3
votes
1answer
8k 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 ...
3
votes
1answer
14k views

How do I turn on flashmode in Sony Ericsson Ray?

How do I turn on flashmode in sony xperia ray? I am doing what is said in forum the flash tool says I am in Fastboot mode not in flash mode.
3
votes
1answer
2k views

What's the process for installing a new ROM after I've just completed one?

I have a HTC Incredible running 2.2, successfully used the unrevoked method and rooted it, used Titanium Backup to back up all apps and system data, and ROM manager to install and run CM7. ok, that's ...
3
votes
1answer
80 views

Why do people recommend rooting a device before flashing a custom ROM?

If rooting isn't required to flash a new ROM (unlocking your bootloader is), why do many people recommend rooting your device before flashing it?
3
votes
1answer
386 views

Searching for factory image of NTT DOCOMO GALAXY Nexus?

i am in search of factory image for my new NTT DOCOMO GALAXY Nexus from japan ... i have checked on https://developers.google.com/android/nexus/images but could not found for Android 4.0.4 (IMM76K) ...