Smartbro R291 & R281 Version 5.4 Unlock w/ Band Locking Tutorial

Smartbro R291 & R281 Version 5.4 Unlock w/ Band Locking Tutorial R281 Version 5.4 & R291 Unlocking Tools: CP2102 USB 2.0 To TTL Uart Module: https://shopee.ph/Cp2102-USB-2.0-To-T... Dupont Jumper Wires: https://shopee.ph/Jumper-Wires-Dupont... CP2102 USB to Serial Windows Drivers: https://www.silabs.com/developers/usb... Putty: https://www.chiark.greenend.org.uk/~s... Smartbro R291 and R281 Version 5.4 Unlocking Firmware Link: https://pastebin.com/duuyF0Lc For Firmware Upgrade Remote Service using ARS Firmware. Please send message us on facebook: Jowel Huerto -   / jhowelhuerto22   Lucas Liam -   / lyndon.sombilon.33   Jerome Laliag -   / jeromelaliag1337   Thanks sa Support