MiraScreen G9 Plus - HW / FW Mods

[renda-l]

MiraScreen G9 Plus - Hardware / Firmware Mods
===========================================

(Source for image: aliexpress.com)​

Warning:

• You make all hardware modifications at your own risk !!!!
• Use the firmware at your own risk !!!!
• We aren't responsible for bricked devices !!!!

Here you will find various hardware modifications, and as well alternative firmware.

The Content of this thread:

• MiraScreen G9 Plus - TearDown
• MiraScreen G9 Plus - Hardware parts, technical specifications
• MiraScreen G9 Plus - Original and Alternative Firmwares
• MiraScreen G9 Plus - Replacing the 2.4G to the dual-band (2.4G / 5G) Wi-Fi module
• MiraScreen G9 Plus - Connecting to the debug interface (Linux Shell)

 

[renda-l]

MiraScreen G9 Plus - TearDown
=====================

DPS version Info:

• SG-EZCAST-8272-Chrome03-V1
• PCB000874
• 20181130

Spoiler: Case Pictures:

Case of G9 Plus:


Case disassembly:

Spoiler: DPS Layout Pictures:

Top DPS:

Bottom DPS:

 

[renda-l]

MiraScreen G9 Plus - Original and Alternative Firmwares
=====================================

Warning:

• Use the firmware at your own risk !!!!
• We aren't responsible for bricked devices !!!!
• All Alternative Firmwares has been tested

Current official firmware version for the "Mirascreen G9 Plus": 1.10505.61

Spoiler: Alternative Firmwares (Firmware tested on the "MiraScreen G9 Plus"):

• FW v1.13610.47: http://cdn.iezcast.com/upgrade/am_8...dongle_std_official-1.13610.47-0x99A7C4FD.img
  • Flash Tool: https://cdn.shopify.com/s/files/1/0017/6553/9884/files/MiraScreen_8272_Repair_Tool.rar
• FW v1.10505.3: http://cdn.iezcast.com/upgrade/sage...gle_anycast_official-1.10505.3-0x937AC2AD.img
  • Flash Tool: https://cdn.shopify.com/s/files/1/2427/2515/files/AnyCast_M100Repair_Tool.zip

Spoiler: Known firmwares for MCU AM8272 (Vendors Names):

Do you know others? I would for the model "Mirascreen G9 Plus"?

[Name Model] , [Vendor String] , [Supported of the "MiraScreen G9 Plus"]​

• (EZCast5G) - ezcast5g - Not supported
• (MiraScreen5G) - am8252_nand_mirascreen - Not supported
• (EZCast 2H) - am_8270_ezcast4k-dongle_ezcast2h - Not supported
• (EZCast TX) - am_8270_ezcast-tx_nand-std - Not supported
• (EZCast 2) - am8271_ezcast2K - Not supported
• (EZCast 4K) - ezcastduo - Not supported
• (EZCast Band1) - am_8271_ezcast2-dongle_b1 - Not supported
• (EZCast Ultra) - am_8275_ezcast-dongle_ultra - Not supported
• (AnyCast M100) - sage_8272_mirascreen-dongle_anycast - Supported
• (MiraScreen K6) - am_8272_mirascreen-dongle_std - Supported

Spoiler: Check Firmware over http api:

• https://api.ezcast.com/api/firmware...mirascreen-dongle_std&firmware_version=1.10.3
• https://www.ezcast.com/service/ota/..._8272_mirascreen-dongle_std&rx_version=1.10.3
• curl http://www.iezvu.com/upgrade/ota_rx.php -d "{\"version\":1,\"vendor\":\"am_8272_mirascreen-dongle_std\",\"mac_address\":\"authorshxj\",\"softap_ssid\":\"000000-00000000\",\"firmware_version\":\"1103\"}"
• curl http://cdn.iezcast.com/upgrade/ota_rx.php -d "{\"version\":1,\"vendor\":\"am_8272_mirascreen-dongle_std\",\"mac_address\":\"authorshxj\",\"softap_ssid\":\"000000-00000000\",\"firmware_version\":\"1103\"}"
• curl http://www.ezcast.com/upgrade/ota_rx.php -d "{\"version\":1,\"vendor\":\"am_8272_mirascreen-dongle_std\",\"mac_address\":\"authorshxj\",\"softap_ssid\":\"000000-00000000\",\"firmware_version\":\"1103\"}"

 

[renda-l]

MiraScreen G9 Plus - Replacing the 2.4G to the dual-band (2.4G / 5G) Wi-Fi module
======================================================

Replacing the 2.4G Wi-Fi module type "RTL8188FTV" with the 2.4G/5G dual band Wi-Fi module type "RTL8821CU"

Spoiler: Replacing the original Wi-Fi module with a USB-A connector:

Original Wi-Fi module type "RTL8188FTV":

Replacement of the "RTL8188FTV" module with a USB-A connector:

Set - USB-A connector + neodymium magnets (attachment of the "Wi-Fi" antenna to the TV holder):

Complete redesign, added with USB-A connector:

Spoiler: Original Wi-Fi module type "RTL8188FTV" placed in the case of a defective Flash Drive:

Ready to test the use of another Wi-Fi module, specifically type "RTL8821CU".

To be continued....

 

[renda-l]

MiraScreen G9 Plus - Hardware parts, technical specifications
========================================

Specifications:

• CPU : AM8272 (Cortex-A7 dual core, Realtek QA Board)
• WiFi Module : RTL8188FTV (2.4G) / RTL8821CU (2.4G+5G)
• Flash NAND : 128MBit (K9F1G08U0E, 16M x 8 Bit NAND, SAMSUNG)
• RAM DDR : 128MBit "1 Gbit" (NT5CB64M16DP-CF, 64M X 16 bit DDR DRAM, Nanya)
• Input : USB-Micro
• Output : HDMI
• Power : USB-A / USB-Micro / 5V 2A
• Case Size : 61 x 39 x 14 mm
• Weight : 23g
• HDMI Cable Length : 11.5 cm

To be continued....

 

[renda-l]

MiraScreen G9 Plus - Connecting to the debug interface (Linux Shell)
============================================

To be continued....