[General Questions and Answers] haridevil99:
One of most successful ROMs for Galaxy Y, The JellyBlast v3 developed by xda dev avijit has known to encounter few problems while flashing the OTA updates provided by the dev. This post is about how to flash the OTA updates correctly and how to troubleshoot if you encounter any problems after flashing any of the updates without flashing the ROM itself to solve the problem. So here is the installing+trouble shooting [GUIDE]. I assume that you are fresh on JB v3 without any OTA updates installed. Dont worry if you already had just read on we will most probably come across your problem and you can also check if you did something wrong while flashing OTA updates. Now to the Guide..

First of all download all the OTA updates 1,2,3,4.1 and 5 (there is a 6th update but it has not been tested by me yet as it is not yet available to download as .zip). Place the updates in a folder for easy access. You probably have CWM (5+) if not, download a compatible version and place it in your sd card root(i.e just in your sd card and not inside any folder). Now Boot your phone to recovery mode. Select 'apply update from sd' and select cwm.zip (assuming that you were on stock recovery, if you have cwm recovery as ur default just carry on). Now in CWM recovery 'wipe cache partion' and select 'mounts and storage' and mount everything (you might experience "unable to mount error" if you have a wrong version of CWM). Now go back and take a backup of your phone (assuming that you are fresh on jb v3 if not, its still good to have a backup). This is to save you from flashing the stock/JB v3 again if you encounter a boot loop (boot loop is the state when your phone keeps on rebooting not going beyond the boot animation). Now back to the guide.. Now after taking backup select 'install zip from sd' and now open the folder that has the OTA updates (if you had put em in any). Select the OTA update 1(the name of the file will be something like "JBV3OTA1.signed.zip", i will be mentioning it as OTA update #). Flash the update 1. Reboot your phone. You should enter your phone's android interface(home screen/launcher) for the updates to take effect. You can check your ROM version from your settings to see if the update was successful. This OTA update is known to crash the notification bar. Dont worry the next OTA updates will fix this. Now again reboot your phone to recovery, go to cwm like before and this time you have to flash the OTA update 2 directly without clearing cache and taking backup but it would be a good idea to mount everything. Now as i told flash the update 2 and reboot, enter your launcher. Again reboot to recover do the same for 3, 4.1 and 5 aka pre-nemesis. You noticed that the 4th update is 4.1. It is the revised version of the 4th update which had some serious problems. So be careful which update you download. And after flashing all OTA updates you can check your ROM version from settings. And now to the troubleshooting part.

I already mentioned the first common problem, the crashing of notification bar. This will be fixed after flashing the second update. The next common problem that can occur anytime during the flashing of updates is bootloop. This is something that can occur randomly and not everyone experience this everytime and the chances are rare enough but if you do encounter this, no worries if you have taken the backup of your phone with JB v3 without updates. Just boot to recovery then CWM then Advance Restore then select the backup file and restore 'system' alone. This will solve the problem. But you have to flash all the updates again from first and thr chances are very very low that you will get into a boot loop again. And another tip is you dont have to pull thr battery if u got into a bootloop. Just keep pressing the power key till the phone switches off. Then boot to recovery by pressing home+volume up+power key for few seconds till phone starts. The next most common problem experienced is the disappearing and crashing of settings app after flashing the 5th update. This can be solved pretty easy. All you got to do is open the OTA update 3 with a archiving app like 'easy unrar lite' and look for system/app/settings.apk extract this settings.apk and install it using system installer. This will solve the problem. These were the most common problems experienced while flashing ota updates. It is recommended to flash the updates one by one because each update is a continuation of the previous. So the guide ends here. Hopes that your ROM works perfectly. For any other trouble you have come across feel free to ask.