My friend use Apollo 18.104.22.168. I follow the guides and help to downgrade to 22.214.171.124. Then, I also helped him to install safestrap and Apollo Gapps Version 1.2. Everything was fine and prefect.
However, my friend tried to use factory reset at Gapps rom v1.2 without telling me. It made Kindle can't boot. Fortunately, he can go to recovery and make stock rom active. It can boot. However, I found that this is not original stock rom. I think the stock rom was replaced by Gapps rom v1.2.
Does anyone know how to restore the original stock rom? I have a stock rom backup copy from my kindle. Can I use that?
Thanks in advance.