This may indeed be a power supply problem. Please ensure to cleanly power your Nextion according to the datasheet power supply range with the recommended supply of current. Under Voltage can cause damage. Over Voltage will cause damage. Too high or too low voltage is likely to damage the backlight. Please refer to your Nextion Model's Datasheets [here]
Not all microSD cards are made for use with embedded devices. - especially the newer high speed cards made for cameras, etc. - there is little real standard between different card manufacturers. The guidelines for the microSD card are as follows: - microSD card is formatted to FAT32 under a Windows OS - microSD card is less than 32GB (most [...]
Nextion Editor is designed to work with Windows and .NET 3.5 - there is no current support for any other operating systems. That being said, many users have used Virtual Machines for Mac and Linux Ensure Microsoft .NET 3.5 is properly installed for your Windows. So while other OS and used Software is beyond the scope of support - it [...]
It is pretty straight forward – there is no recovery. Simply stated: Do Not Lose, or Do Not Use It was locked to protect the project DO NOT LOSE YOUR PASSWORD, or do not use password. We also will not reverse engineer someone else's project for you
Nextion is a 5V device. Reversing polarity or using a voltage that is out of spec is no longer a warranty issue. This is a user error and sorry, it is not an error of manufacturing. The Nextion is also not Open Source, so we will not be disclosing what that component at [??] is. Nextion does not refurbish or [...]
Check the back of your display. If the model begins with "TJC" it means your display is a TJC model and not a Nextion. We will offer no support.