Be careful when you downgrade a500fu

Unlock4samsung Saturday, February 16, 2019

hello i use chimera to downgrade a500fu from 6.01 to 4.4.4 boot 1 sotware says firmware compatible when i star flach it stop and wont boot after that
Printing phone history
SW Change 16/02/2019 08:04:52
SW Change 16/02/2019 07:55:07
SW Change 16/02/2019 07:46:58
Firmware update started
Extracting firmware...
Unzipping firmware: A500FUXXU1AOB4_A500FUWIN1AOC1_A500FUXXU1AOB4_HOME. tar.md5.
Processing firmware...
Flashing firmware...
Waiting for download mode.
Connecting.
Reading PIT from phone.
Checking firmware compatibility.
RP SWREV: S1, T1, H1, R1, A1, P1
The firmware version is compatible.
Flashing aboot.mbn
Flashing sbl1.mbn
Flashing rpm.mbn
Flashing tz.mbn
Flashing NON-HLOS.bin
Flashing boot.img
Flashing recovery.img
Flashing system.img.ext4
Firmware flash failed.
Finished at local time: [02.16.19 09:13:36]
WorkID: 52706462