How to Format Lonsdor K518 PRO to Fix Problem


If your Lonsdor K518 PRO tips the following problem, try Format it and the problem will be sorted.




Here is the detail Procedure of Formatting K518



Hold those two buttons marked in red at the same time, you will enter the interface below.



Press “Factory Setting” once and the device will show a prompt as the picture below, just press “OK” to continue



Wait for about one minute, you will enter the interface as shown in Picture 4. Press “Repair” and then press “Oldest APK”.









After installing APK, press “Return” and you will enter the interface below again. Press “Start APK”.



Connect the device to WiFi and update it



Press “OK” to force to update.



After updating, you can use the device as before.


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