How to fix oppo f1s can not enter the menu or bootloop

 How to Flash Oppo F1s without PC - Various common problems faced by Oppo F1s users are Mobile Oppo, only Oppo (Bootloop)! Oppo cellphone forgets the lock pattern or password! Oppo cellphone stops forcibly when opening the application! and others. Relax if that's the problem, you don't need to worry or worry because your gadget problem occurs in almost all gadget brands, not just Oppo users. Well to overcome this problem, you usually bring it directly to the Handphone repairman. Through my writing, I will share my knowledge on how to fix various problems on Oppo F1s such as bootloop, Oppo can't be opened because I forgot the key pattern or password, Oppo failed to open the application because of system errors and others. The way I use it is the original Oppo F1s Flash Firmware without using a computer or PC. This method is very safe, fast and guaranteed without removing the factory warranty if the warranty period has not expired.
As is known, the general way used for Flash Mobile Firmware is to use a computer or PC. Well, even though we have a PC, maybe later on during the Flashing, we will be populated with a Tool to connect between cellphone and PC (driver), Flashing Software (for example Flashtool) and of course also Stock Rom Firmware. Oppo has advantages in terms of ease of doing this Flashing. Recovery mode (Hard reset) is provided by Oppo to overcome the various problems mentioned above. Immediately we start the Guide to How to Flash Oppo F1s without a PC. How to Flash Oppo F1s without a PC?

How to Flash Oppo F1s without a PC
First Step: Prepare the Oppo F1s Firmware
To Flash Oppo F1s without a PC, we prepare the material first. The material needed is none other than the Oppo Smartphone Firmware. The Oppo Oppo F1s firmware can actually be obtained directly from the Oppo Official Website of Indonesia, but if you don't want it complicated, please get the Firmware via the following link.
I got the Firmware file above from the official Oppo support page for users. Please adjust your Oppo type with the available Firmware options.
Second Step: Enter Oppo F1s Firmware to SD Card
Enter your Oppo F1s Firmware into SD Card (external memory). Make sure the SD Card containing Firmware is installed in the Mobile Oppo F1s that we will Flash.
Step Three: The Process of Flashing Oppo F1s without a PC
Turn off your HP Oppo F1s. If it is bootloop, remove the battery to turn it off, and if it is dead, reinstall the battery.
Press and hold the Volume down + Power Button simultaneously until the Oppo logo appears and the Recovery Mode entry in the lower left corner. If so, release the button you pressed.
Select the language you want to use. Recovery OPPO is supported by touchscreen operation, if the touch screen does not work in this situation, you can use Volume Up / Down to navigate and use the Power / Power Button to confirm.
Select "Wipe data and cache" to make a clean Flashing installation. Then press "Yes".
Select "Install from sd" (external memory).
Search and select the firmware that you have placed earlier in the SD Card. If it has been found press "Yes". The flashing process will be completed in a few minutes, please wait.
Press "Reboot" if the installation is complete.
Finished. Please check the success of your Flashing process. Flashing the Oppo F1s that I mentioned above not only resolves the problems that occur on your cellphone, but also updates your mobile firmware so that your Oppo F1s is not only as new when you bought it before, but also updated with various update to current state. If through this tutorial your Oppo F1s is healthy and no longer has a problem or vice versa if something is unclear or fails, don't hesitate to leave a comment below this post.