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.
![](/upload/service/24050917153218195757.png)
Here is the detail Procedure of Formatting K518
![](/upload/service/24050917153219907821.jpg)
Hold those two buttons marked in red at the same time, you will enter the interface below.
![](/upload/service/24050917153219907815.jpg)
Press “Factory Setting” once and the device will show a prompt as the picture below, just press “OK” to continue
![](/upload/service/24050917153219911652.jpg)
Wait for about one minute, you will enter the interface as shown in Picture 4. Press “Repair” and then press “Oldest APK”.
![](/upload/service/24050917153219918086.jpg)
![](/upload/service/24050917153219917776.jpg)
![](/upload/service/24050917153219927000.jpg)
![](/upload/service/24050917153219925356.jpg)
After installing APK, press “Return” and you will enter the interface below again. Press “Start APK”.
![](/upload/service/24050917153219937628.jpg)
Connect the device to WiFi and update it
![](/upload/service/24050917153219931422.jpg)
Press “OK” to force to update.
![](/upload/service/24050917153219946409.jpg)
After updating, you can use the device as before.
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