How to Fix 80% Sending BaseBandData ERROR Unable to Restore iDevice(-1) and Fix Error Occurred (9) iTune

Hello now i want to show some solution that i ready with test result good with iPhone Restoring / Flash Firmware with iTunes Tools & 3utools :
First i got iPhone 11 pro Max from my brother but the iPhone cannot use because of it come with hanging on (Recovery Mode) recommend connect to iTune.,
By before have someone try to flashed or restored with firmware but not complete or not finished,so cause show Recovry Mode on iPhone like this.,

iphone 11 pro max Recovery Mode
Now, here how to i Sovle this problem:
1- I start find to download latest firmwaredownload latest firmware that related with Model and series of iPhone…then i need to Download & install iTune ToolsDownload & install iTune Tools, when i have them all.
iTune Tools
2-Open iTunes and connect phone with Covery Mode
with PC then coose firmware that just downloaded , Start flash….. and waiting for result ….
finaly i got alert from iTune Tools that: The iphone”iphone” could not be restored. An unknown
Error Occurred (9) And iPhone Reboot to Recovery Mode, Means that: iTunes Cannot Successful flashing.
iTunes Cannot Successful flashing, Show Error Occurred (9)
After that i do hard research on Internet and Google/ youtube as result i get idea with 3utools, so i find to download 3utool Toolsdownload 3utool Tools..and install then Run..
3utools

Now, Step 2 i very Try Start Flash with 3utools , with this Tools i start Flash with TICK on (Quick Flash Mode)..

-But got sad the same, gotten alert that: 80% Sending BaseBandData ERROR Unable to Restore iDevice(-1)
And iPhone Reboot to Recovery Mode.
80% Sending BaseBandData ERROR Unable to Restore iDevice(-1)

-I never give up, i try again with 3uTool Tools, but i just change ( Tick) by Flash with TICK on (Anti-Recovery Flash )

Note: (If Flash with TICK on (Anti-Recovery Flash )
Can Write Skip BB Via 3uTools realy helpe if Iphone’s BaseBand probleme. )
As result 2nd try Tick) by Flash with TICK on (Anti-Recovery Flash , i’m happy because runing flash is complete and succsseful restore ..
Please make try watch video guide by don’t skip …


Please Watchfull Video method and follow ste by step…

Fix :
iTunes Cannot Successful flashing, Show Error Occurred (9)
And iPhone Reboot to Recovery Mode
Now, Step 2 Start Flash with 3utools
Now, Flash with TICK on (Quick Flash Mode)

80% Sending BaseBandData ERROR
Unable to Restore iDevice(-1)
And iPhone Reboot to Recovery Mode
Now, Try Again with 3uTools the same

Now, Flash with TICK on (Anti-Recovery Flash )
Please Follow Step by Step…
If Flash with TICK on (Anti-Recovery Flash )
Can Write Skip BB Via 3uTools realy helpe !
please Try Note with Step here to….

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