How to Unroot the Lenovo A850
Maybe you’re facing issues on your Lenovo A850? Maybe you want to send it in for warranty purposes? Either way, this guide should help you. It’ll teach you how to unroot your device and get it back to stock firmware.
Unrooting is the process of removing root access, a custom recovery (if you have one), and just trying to get the device back to as close to stock as possible.
Some of the reasons for unrooting your Lenovo A850 are:
- Sending in the device for warranty (most, but not all unrooting procedures reinstate the manufacturer warranty if you had one before rooting).
- Starting over (simply undoing everything you did while rooted so you can have a clean slate to start over).
- Fix any issues (Maybe rooting messed something up? No problem, unrooting will take care of it for you).
Ready to get started? Here’s how to unroot the Lenovo A850:
I. Before You Begin
1. You should’ve rooted your device using the procedure given here.
2. This should flash the stock firmware on your device.
3. This only works on Windows based PCs.
II. Downloading Required Files
1. Download Stock Firmware and save it to your desktop.
III. Unrooting the Lenovo A850
1. Extract files from Stock Firmware to your desktop by right-clicking on it and selecting Extract here.
2. Double-click on Flash Tool executable and it’ll launch.
3. Click on Scatter-loading and choose the scatter file that has come with your stock firmware.
4. Click on Options > USB mode.
5. Turn OFF your device.
6. Pull the battery out of your device. Do NOT put it back in until the procedure’s done.
7. Click on Download button in the tool.
8. Plug in your device to your PC via USB cable.
9. It should start flashing the firmware on your device.
10. When the firmware’s flashed, put the battery back in your device and then turn it ON.
11. You’re done!
Awesome! Your Lenovo A850 is now unrooted and is running the official stock firmware.
You can click here to find all of the Lenovo A850 How To’s.
You can also find all of the Lenovo A850 ROMs we have here.
