Posted by Jayce Ooi as How to
How to restore stock firmware on Google Nexus 7? That’s the question you will ask when want to return Nexus 7 to Asus for warranty claim. Your Nexus 7 warranty might be voided if you leave Nexus 7 bootloader unlocked or have unofficial stuffs like rooted Nexus 7, custom firmware, ROM and kernel. Therefore, we need to remove all unofficial stuffs and lock Nexus 7 bootloader back. No worry, just follow below step by step video guide to restore stock firmware on Nexus 7. Everything will be back just like the very first time you power on Nexus 7.
Note – Restore stock firmware on Nexus 7 will delete everything on your Nexus 7. Do backup all your applications and data with Titanium Backup or make a full system backup with Nandroid (CWM) before proceed. And make sure that Google Nexus 7 ToolKit and Nexus 7 adb & fastboot drivers are installed properly. Finally, have Nexus 7 factory image ready.
Step by Step Guide
Yeah… Your Nexus 7 should be back to stock firmware after you done everything as above. No need to worry about warranty claim now.