GUIDE TO SUCCESFULLY UPDATING LENOVO A3900
Flashing of mobile Chinese devices is common these days as they are widely used throughout the day to day activities.
When it comes down to Lenovo as a brand name in the GSM technology scope, Lenovo is not an exception since these devices are electronics and as such are duely expected to develop issues or faults due to use and misuse as they are not high and mobile devices.
As we all know Lenovo devices are widely used across all platforms. In most of these occasions such as home use, office, personal etc.
Tips to Note when Upgrading or Flashing of Lenovo A3900
Always check and know the chipset built Into the devices that is to be precise [the CPU] the Lenovo A3900 comes with a Qualcomm processor, hence the flashing of faulty Lenovo A3900 will require the use of the appropriate tool created for the purpose, therefore the upgrade normally should be done using the qualcomm flash tool if the drivers and correct firmware that has no password lock is produced or at hand.
Upgrading Lenovo A3900
– Guide By Recovery Method
Power off the device by pressing the power buttons for 2 to 3 seconds to switch it off, wait for some seconds for the Android system to fully power down.
Prepare an “SD Card” card preferable a (sandisk) memory card of about 4gb or 8gb preferably, then copy the android firmware into the root of the sd card the firmware should be in zip format. Insert the memory into the memory slot of the device then insert the battery.
Boot the device into Recovery then select the option (apply zip from zip from SD card)
Select yes for the process to begin in full.
After the process finishes installing the ROM then clear cache partition and wipe Factory Reset.
Power on the Android devices and wait for the first boot.
Repairing IMEI on Lenovo A3900 After Flash or Upgrade
As it is normal for most devices to have network related issues after a software change the Lenovo android A3900 do displays network related issues like (invalid IMEI) after the process hence if such happen solution is as follows:-
a. Power off device and do a factory reset