How to update S-Tell M558?
To update the S-Tell M558 you need to install an alternate firmware (ROM).
If the device does not automatically update by itselves. You can use the new firmware for your smartphone.
You have to choose the firmware version and follow the instructions. If you have a trouble in update you can write about it in the comments below, we’ll help you.
S-Tell M558 firmware:
If you are looking for another firmware, you can write a comment below. We will solve your problem and give you a link to update the firmware.