When you first buy your android phone (and most probably every other phone) it will run a “radio Interface Layer” usually between the Android OS and the Radio device itself. This way they can communicate between each other so that the main functions of the phone can actually work.

 

However in some cases, and if you live a little bit on the edge then you may want to update this image with a more new up to date one. People frequently do this to avoid signal drop outs that happen to them or just general mobile phone signal problems. Majority of time these fixes are released in the next OTA update however if you are running custom builds you obviously won’t be able to get the OTA updates.

 

Now just to mark this with a disclaimer. If you actually geographically have signal problems then this will not fix them. This fix should only be performed if there is an up to date radio for your device and also if you are experiencing signal drop outs where you know there shouldn’t be. I will not be held liable for anything you follow out of this guide, you can brick your phone by incorrectly flashing the wrong radio. Make sure you are aware of the consequences if you do something wrong and that you know what you are going before you go any further.

 

1. Download the updated radio zip image
2. Place the downloaded file onto your microSD card and rename it PG88IMG.zip
3. Reboot your phone into the HBOOT menu (fastboots needs to be disabled)
4. Once in HBOOT you will be prompted if you want to flash the new image to the phone – select yes
5. After the process if complete you should just need to reboot your device and that’s it

 

Once your phone has booted (if you carried out the steps correctly) you should have a new radio image working on your phone. Once it has booted and everything is working, you will need to remove the image file from your microSD card so that it doesn’t keep trying to flash the image on every boot.