Model Name  : great_a900f
Model Brand : POLYTRON
Model Device: great_a900f
AndrVersion : 4.4.2
BaseBand CPU: GREAT_A900F
Project Ver : Polytron_R2506_A900B_V03_2015.10.21
Model Ext   : POLYTRON R 2506

Bahan :
1. Download Firmware PAC Polytron R2506

•  CSTool_7731_EMMC_POLYTRON R2506_A900B_V03_20160828_193549 PAC FILE
•  Polytron_R2506_A900B_V03_20160828_193549-REPACK PAC FILE

2. Download Firmware Polytron R2506 via Infinity CM2 DOWNLOAD DISINI
3. Download Research Download R2.10
4. Driver SPD by InfinityBox
5. Turorial Flash via research here
6. Konfirmasi pass sms only 0822-1163-1565 (nomor ini hanya buat konfirmasi, BUKAN YANG DI ISI) , Mahar pulsa 10k

Error pada research download baca disini

Log Read Fimware Polytron R2506
Operation : Read FullFlash [ v1.20 ]

1. Remove battery. Insert battery back
2. Press and hold ‘VolumeUp’ and ‘VolumeDown’ keys
3. Insert cable

 ====  Wait for phone…

Phone found! [ 34 ]
Port Opened
Sync…
InitBoot Done [ 0x81 ] , Ver : SPRD3
Sync…
Sending FDL
[Info] : If SW freeze here more, than 15 seconds – remove cable
FDL Ready!
Boot Ver : SPRD 773x eMMC loader v3 Infinity
Sending FLASH FDL
FLASH FDL Ready!
Boot Ok!

FlashMode Set : Ok!
Detected eMMC Flash , Structure detect Ok!

[FW_READER] : Step #1 Passed!
[FW_READER] : Step #2 Passed!
[FW_READER] : Step #3 Passed!

Phone found! [ 34 ]
Port Opened
Sync…
InitBoot Done [ 0x81 ] , Ver : SPRD3
Sync…
Sending FDL
[Info] : If SW freeze here more, than 15 seconds – remove cable
FDL Ready!
Boot Ver : SPRD 773x eMMC loader v3 Infinity
Sending FLASH FDL
FLASH FDL Ready!
Boot Ok!

Model Name  : great_a900f
Model Brand : POLYTRON
Model Device: great_a900f
AndrVersion : 4.4.2
BaseBand CPU: GREAT_A900F
Project Ver : Polytron_R2506_A900B_V03_2015.10.21
Model Ext   : POLYTRON R2506

[Read Mode] : HSUSB : 0x3000

[FW_READER] : Reading Firmware Now …

[Read Ok] : u-boot-spl-16k.bin
[Read Ok] : u-boot.bin
[Read Ok] : prodnv.img
[Read Ok] : sc7731g_CP0_modem.bin
[Read Ok] : DSP_DM_Gx.bin
[Read Ok] : nvitem_w.bin
[Read Ok] : sc8830g_modem_CP2_WCN_14D_W15.22.3_Release.bin
[Read Ok] : nvitem_wcn.bin
[Read Ok] : logo_480x854.bin
[Read Ok] : fblogo_480x854.bin
[Read Ok] : boot.img
[Read Ok] : system.img
[Read Ok] : cache.img
[Read Ok] : recovery.img
[Read Ok] : userdata.img

AndroidInfo created
Firmware Size : 1140 MiB
Saved to : G:\andro3\POLYTRON\R2506 7731\GREAT_A900F_great_a900f_4.4.2_Polytron_R 2506_A900B_V03_2015.10.21_POLYTRON_R2506\kangsuper.blogspot.co.id
Done!

Elapsed: 00:05:30