How To Fix Unknown Baseband & Unknown IMEI Issue In MTK Devices on Vivo 1808(y81) Via Sp-flash tool.
How to Flash firmware Vivo Y81 (1808) with SP-Flashtool
1-First to download Firmware File Vivo Y81 (1808) / SP-Flashtool / Driver.
2- After download all above please extract all filefFrom Zip file.
3-Please Open folder SP-Flash Tool and click RUN (flash_tool.exe)
4- Choose in the download agent tab And select the (DA_PL.bin) come with Folder Flash Tool .
5-Click on choose in the Scatter-Loading File tab and select the scatter file from the flash file folder (PD1732F&DF_EX_A_2.3.1_vivo)
6-Click on choose Athentication File And select the (authfile.auth) come with Folder Flash Tool .
7-Click on the download button And select ( Firmware Upgrade)
8-Click on ( Download Tap) on FlashTool
9-Turn off Device for Vivo y81 keep press hold up Vollume Up + Volume Down and insert USB to PC ( Don’t forget Install MTK Driver in your PC)
10-Just waiting the proccesse complete
While flashing, do not do anything on phone like : remove the data cable from the phone or PC , Just make waiting..
After proccesse complete check Baseband & Unknown IMEI restore back realy good