Requirements:
- Root your android phone (use google to find simple way to root your android or go Rooting category of this site).
- Install Clockworkmod recovery (helps us to backup and restore your default Rom and install new Rom). We suggest you to backup your default ROM before install new Rom.
Their ROMs usually improve performance and battery life, upgrade your device to a newer version of Android than what the manufacturer supports, and includes some other extras such as enthusiast-level performance settings. If your device is quite popular, then XDA forum is most likely to offer custom ROMs for it.
- Go XDA forum to find your’s device ROM. (for example my device is Samsung Galaxy Ace Plus S7500 )
- Now go your’s device Android Development category (for example Galaxy Ace Plus S7500 Android Development)
- After that you need to find Stable Rom for your android device.
- After that Download ROM .zip file, ex: ROM.zip
- After you download the ROM.zip then Copy the ROM.zip file to the SD Card (do NOT extract it, just copy the whole zip file).
How to Install Custom Rom on Android Devices:
1st Method:
Installing a new ROM (more commonly known as “flashing”) is very easy with ROM Manager. Just go back to the “Find and download ROM” section (or, if you’re installing a ROM from your SD card, go to “Install ROM from SD card” and pick your ROM). It will download, if applicable, and then give you this prompt: Always, always, always back up your existing ROM before flashing something new. Then, if something goes wrong, you can always restore to your latest backup, either through ROM Manager (by going to “Manage and Restore backups” on the main menu) or by booting into recovery mode and choosing “nandroid”. Generally, you’ll want to “Wipe Data and Cache” if you’re moving from a ROM based on one Android version to the next (i.e. a 2.1-based ROM to a 2.2-based ROM). You’ll also want to check the main download page of the ROM you’re installing (which you can find through TheUnlockr) to see if they recommend wiping for that particular version. “Wipe Data and Cache” basically means that all your settings will be returned to stock—If you weren’t running a Froyo build beforehand, you’ll have to re-download all your apps, as well as rearrange your home screens and reconfigure all your custom settings every time you wipe. In the end, you can always try not wiping and see what happens—if you flash a ROM and have problems, it’s pretty easy to restore from your backup and try again.
2nd Method:
- After you download the .zip to your computer, plug in your device via USB cable.
- Copy the .zip file to the SD Card (do NOT extract it, just copy the whole zip file).
- Unplug your device.
- Swich off your phone, now open clockworkmod recovery. search in google and find or comment below, for e.g. ( when the swich is off, press menu button+power button+vol. up+vol.down..(my device is samsung galaxy ace plus))
- when the recovery mode is open, use the volume buttons to navigate and power button to select.
- If you want to backup your default rom select backup and restore option and click on backup hit yes to confirm (this will save you if something goes wrong), if you want to back install default backup then click on restore option, then select your backup rom .zip file.Then select Backup and hit yes to confirm. Wait for it to finish backing up your current system .
- Select Wipe Data / Factory Reset
- Select Choose zip from sdcard.
- Select ROM.zip from sdcard
- Find the ROM we copied to the sdcard in ROM.zip format and select it. Then select yes to confirm. Wait for it to finish flashing.
- Select Reboot System Now. Once it reboots (which will take a while the first time), you’ll be running the new ROM.
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