Solution: Lonsdor K518ISE/K518S “Device fault26” Error

September 22, 2021

How to solve Lonsdor K518ISE/ Lonsdor K518S Key Programmer “Device fault26” error? This is a guide to solve the problem.

Solution Lonsdor K518is K518s Device Fault26 Error (1)

 

Solution

  1. Hold and press 2 buttons marked in red meanwhile, you’ll go access to the interface.

Solution Lonsdor K518is K518s Device Fault26 Error (2)

 

  1. Press “Factory Setting”.

Lonsdor K518 will show a prompt: “This will uninstall all apk, and format all user data, also the device will automatically restart and return to factory settings. Please be careful!!!”.

Press “OK” and wait for about 1 minute.

Solution Lonsdor K518is K518s Device Fault26 Error (3)

 

  1. Press “Repair”.

A warning displays: “This operation will clear apk related data and reinstall, please operate carefully!!!”.

Press “OK”.Solution Lonsdor K518is K518s Device Fault26 Error (4)

Solution Lonsdor K518is K518s Device Fault26 Error (5)

 

  1. Follow the path to find a repair file: Android desktop >> Circle button >> File manager >> Internal storage >> emulated >> 0

Note: if do not find the file, please connect Lonsdor K518 to a PC to put the file in.

Solution Lonsdor K518is K518s Device Fault26 Error (6)

Solution Lonsdor K518is K518s Device Fault26 Error (7)

Solution Lonsdor K518is K518s Device Fault26 Error (8)

Solution Lonsdor K518is K518s Device Fault26 Error (9)

 

  1. Press repair file.

A install blocked prompt shows: For security, your tablet is set to block installation of apps obtained from unknown source.

Press “Settings >> Unknown sources >> OK”.

Solution Lonsdor K518is K518s Device Fault26 Error (10)

Solution Lonsdor K518is K518s Device Fault26 Error (11)

 

  1. You’ll come back to same interface. Press repair file again.

And then “Next >> Install >> Open”.

Solution Lonsdor K518is K518s Device Fault26 Error (12)

Solution Lonsdor K518is K518s Device Fault26 Error (13)

 

  1. Connect Lonsdor K518 to WiFi, press “Update >> OK”.

Wait updating completed…

 

The device will be normal as before after going through the fixing procedure.

Solution Lonsdor K518is K518s Device Fault26 Error (14)

Solution Lonsdor K518is K518s Device Fault26 Error (15)

 

Hope it’s helpful.

 

More questions feel free to contact us.

https://www.obdiitool.co.uk/



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