TRT-AL00A convert global TRT-L21A

[dexter_mn]

Model: TRT-L21
MEID: A0000077D7CF2B
pESN: 809DA606
IMEI: 866147032097471
Firmware ver.: TRT-AL00_MSM8940C00B210_AMSS Nov 20 201815:06:54
Firmware model: TRT-AL00
Dataver: TRT-L21AC636B167_DATA_TRT-L21A_hw_spcseas
SN: 9YJNW17622011469
PCB SN: NW4KXK176M013635
WiFi MAC: D8:C7:71:0A:C7:EF
BlueTooth MAC: D8:C7:71:0A:99:E9
Vendor: hw
Country: eu
eMMC: 64GB
eMMC ID: 450100444634303634012EDBC4223400
HUN: 0000000000000000

IMEI 1 Sim Lock status:
NET: unlocked
NETSUB: unknown
SP: unknown

no speaker no mic sound after flash
how to fix it
Firmware ver.: TRT-AL00_MSM8940C00B210_AMSS Nov 20 201815:06:54 not changed ?

[Valdemaras]

Can only try to reflash same firmware from sd card, if it's software problem it should help.