For official downloads, you can often find tested firmware archives on platforms like Hovatek or HardReset.info . How to Download Firmware for LAVA Iris 758?, How To
: 4G LTE, Wi-Fi 802.11 b/g/n, Bluetooth, and MicroUSB v2.0 Flash File and Firmware Details lava iris 758 flash file
For official downloads, you can often find tested firmware archives on platforms like Hovatek or HardReset.info . How to Download Firmware for LAVA Iris 758?, How To
: 4G LTE, Wi-Fi 802.11 b/g/n, Bluetooth, and MicroUSB v2.0 Flash File and Firmware Details