Model Name  : sp7731geahdrplusoversea
Model Brand : POLYTRON
Model Device: device
AndrVersion : 5.1
BaseBand CPU: SP7731GEA_HDR
Project Ver : POLYTRON_R2507_V5.2.6_20161217
Model Ext   : POLYTRON R2507

Bahan :

1. Download Firmware PAC Polytron R2507 White Gold ZT V5.2.6 20161217 atau Download Disini
 
2. Download Firmware PAC Polytron R2507 Dark Gold ZT V5.2.7 20161223 atau Download Disini

3. Download WAJIP PAKE SPD_Upgrade_Tool_R4.0.0001  Download Disini
4.  Driver SPD by InfinityBox
5. Tutorial Flash via research here
6. Konfirmasi pass sms only 0822-1163-1565 (nomor ini hanya buat konfirmasi, BUKAN YANG DI ISI) , Mahar pulsa 10k

Firmware Pac Polytron R2507 versi lain :

• SP7731GEA_HDR_device_5.1_POLYTRON_R2507_V14_20160616 atau Download disini
• SP7731GEA_HDR_device_5.1_POLYTRON_R2507_V10_20160115 atau Download disini
• SP7731GEA_HDR_device_5.1_POLYTRON_R2507_V11_20160129 atau Download disini

Error pada research download baca disini

Cara Flash R2507 via SPD UPGRADE TOOL

Log read Firmware Polytron R2507 White Gold ZT
Operation : Read FullFlash [ v1.25 ]

1. Remove battery. Insert battery back
2. Press and hold ‘VolumeUp’ and ‘VolumeDown’ keys
3. Insert cable
 ====  Wait for phone…
Phone found! [ 11 ]
Port Opened
Sync…
InitBoot Done [ 0x81 ] , Ver : SPRD3
Sync…
Sending FDL
[Info] : If SW freeze here more, than 15 seconds – remove cable
PickUp loaders from pac
FDL Ready!
Boot Ver : Spreadtrum Boot Block version 1.1
Sending FLASH FDL
FLASH FDL Ready!
Boot Ok!
FlashMode Set : Ok!
Detected eMMC Flash , Structure detect Ok!
[FW_READER] : Prepare Ok!
– > Wait phone connected …
Phone found! [ 11 ]
Port Opened
Sync…
InitBoot Done [ 0x81 ] , Ver : SPRD3
Sync…
Sending FDL
[Info] : If SW freeze here more, than 15 seconds – remove cable
PickUp loaders from pac
FDL Ready!
Boot Ver : Spreadtrum Boot Block version 1.1
Sending FLASH FDL
FLASH FDL Ready!
Boot Ok!

– > Wait phone connected …

Phone found! [ 11 ]
Port Opened
Sync…
InitBoot Done [ 0x81 ] , Ver : SPRD3
Sync…
Sending FDL
[Info] : If SW freeze here more, than 15 seconds – remove cable
PickUp loaders from pac
FDL Ready!
Boot Ver : Spreadtrum Boot Block version 1.1
Sending FLASH FDL
FLASH FDL Ready!
Boot Ok!

Model Name  : sp7731geahdrplusoversea
Model Brand : POLYTRON
Model Device: device
AndrVersion : 5.1
BaseBand CPU: SP7731GEA_HDR
Project Ver : POLYTRON_R2507_V5.2.6_20161217
Model Ext   : POLYTRON R2507
[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_W15.28.4_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
[Build Ok] : cache.img
[Read Ok] : recovery.img
[Read Ok] : fbootlogo3.bin
[Read Ok] : fbootlogo4.bin
[Read Ok] : fbootlogo5.bin
[Build Ok] : userdata.img
AndroidInfo created
Firmware Size : 2229 MiB
Saved to : E:\polytron\New folder\SP7731GEA_HDR_device_5.1_POLYTRON_R2507_V5.2.6_20161217_POLYTRON_R2507\
Done!

Elapsed: 00:14:57