The is an excellent router when freed from carrier locks. While searching for "ZLT S10 Unlock Firmware Download" can feel like walking through a minefield, following this guide will protect you from scams and bricked devices.
If your device has a locked bootloader, you may need to unlock it before flashing custom firmware. Zlt S10 Unlock Firmware Download-
Some developers host the unlock firmware openly. Search: ZLT_S10_unlock_firmware.bin on GitHub. Look for repositories with active stars and recent commits. The is an excellent router when freed from carrier locks