This method works if you are uploading an authorized upgrade file or an easily flashable modded configuration file. Connect your PC to the ZLT S10 using an Ethernet cable.
ZLT S10 (Often branded under ZTE or various ISP rebrands) Current Status: Support for this model has become limited as it is an older 4G LTE router. Official manufacturer links are often dead, making third-party repositories necessary.
For smartphones, you can typically check for system updates in the device's Settings app. Go to Settings > About Phone > System Updates.
If you have a or need a specific firmware file, post your current version + hardware revision in the comments below or visit the official ZLT S10 firmware thread at [forum.example.com/zlt-s10].
Modifying your router's factory firmware offers several distinct performance advantages.