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toh:xiaomi:mir3 [2018/05/12 22:20]
stephen304 Add one method of recovering from brick.
toh:xiaomi:mir3 [2018/06/09 02:52] (current)
ricardojlrufino [Get SSH/dropbear access]
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 ===== Hardware ===== ===== Hardware =====
 +==== Info ====
 +^ [[wp>​Instruction set]]                | [[wp>​MIPS architecture|MIPS]] ​  |
 +^ Vendor ​                               | [[wp>​MediaTek]] |
 +^ [[docs:​techref:​bootloader]] ​          | [[docs:​techref:​bootloader:​uboot|U-Boot + Xiaomi U-Boot]] |
 +^ [[docs:​techref:​hardware:​soc|System-On-Chip]] ​ | Ralink MT7620A |
 +^ [[docs:​techref:​hardware:​cpu|CPU]] @Freq       | MIPS 24KEc V5.0 @580 MHz |
 +^ Flash size                            | 128 MiB NAND |
 +^ Flash Chip                            | [[http://​www.esmt.com.tw/​DB/​manager/​upload/​F59L1G81LA(2Y).pdf|ESMT F59L1G81LA]] (different chip might be used)|
 +^ RAM size                              | 128 MiB DDR2  |
 +^ RAM Chip                              | [[http://​www.nanya.com/​en/​Product/​3779/​NT5TU64M16HG-AC|NT5TU64M16HG-AC]] |
 +^ Wireless No1                          | SoC-integrated:​ MT7620A 2x2 MIMO 802.11b/g/n (2.4 GHz) |
 +^ Wireless No2                          | On-board chip: MT7612E 2x2 MIMO 802.11a/​n/​ac (5 GHz)  |
 +^ [[docs:​techref:​hardware:​switch]] ​             | MT7620 built-in 10/100 switch w/ vlan support ​ |
 +^ USB                                   | 1x  |
 +^ [[docs:​techref:​hardware:​port.serial|Serial]] ​ | [[#​Serial|Yes]] (write disabled after first boot by kernel)|
  
-==== Detailed hardware ==== 
-| **[[wp>​Instruction set]]:​** ​               | [[wp>​MIPS architecture|MIPS]] ​  | 
-| **Vendor:​** ​                               | [[wp>​MediaTek]] | 
-| **[[docs:​techref:​bootloader]]:​** ​          | [[docs:​techref:​bootloader:​uboot|U-Boot + Xiaomi U-Boot]] | 
-| **[[docs:​techref:​hardware:​soc|System-On-Chip]]:​** ​ | Ralink MT7620A | 
-| **[[docs:​techref:​hardware:​cpu|CPU]] @Freq** ​       | MIPS 24KEc V5.0 @580 MHz | 
-| **Flash size:​** ​                           | 128 MiB NAND | 
-| **Flash Chip:​** ​                           | [[http://​www.esmt.com.tw/​DB/​manager/​upload/​F59L1G81LA(2Y).pdf|ESMT F59L1G81LA]] (different chip might be used)| 
-| **RAM size:​** ​                             | 128 MiB DDR2  | 
-| **RAM Chip:​** ​                             | [[http://​www.nanya.com/​en/​Product/​3779/​NT5TU64M16HG-AC|NT5TU64M16HG-AC]] | 
-| **Wireless No1:​** ​                         | SoC-integrated:​ MT7620A 2x2 MIMO 802.11b/g/n (2.4 GHz) | 
-| **Wireless No2:​** ​                         | On-board chip: MT7612E 2x2 MIMO 802.11a/​n/​ac (5 GHz)  | 
-| **[[docs:​techref:​hardware:​switch]]:​** ​             | MT7620 built-in 10/100 switch w/ vlan support ​ | 
-| **USB:​** ​                                  | 1x  | 
-| **[[docs:​techref:​hardware:​port.serial|Serial]]:​** ​ | [[#​Serial|Yes]] (write disabled after first boot by kernel)| 
  
- +==== Serial ==== 
-==== Serial ​connection ​==== +The serial port of the router ​can be accessed using the TTL pins. A voltage level converter (such as a CP2102 TTL-USB dongle) is required. Writing to the console is disabled in the factory U-Boot. Writing to the console in the factory firmware is only possible during first boot; afterwards it is disabled by the firmware.
-The serial port of the Router ​can be accessed using the TTL pins. A voltage level converter (such as a CP2102 TTL-USB dongle) is required. Writing to the console is disabled in the factory U-Boot. Writing to the console in the factory firmware is only possible during first boot; afterwards it is disabled by the firmware.+
  
 To enable writing to the console, you must use the following commands: To enable writing to the console, you must use the following commands:
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   * OLD_PASSWORD is your admin password you'd set while setting up the router or can be reset from Mi Wifi app.   * OLD_PASSWORD is your admin password you'd set while setting up the router or can be reset from Mi Wifi app.
 +
 +You should now be able to access ssh:  ​
 +**ssh root@192.168.31.1**
 +
 +Now you can re-enable serial port (must reboot):
 +<​code>​
 +nvram set uart_en=1
 +nvram commit
 +</​code>​
  
 P.S.- Got the instructions from http://​www.right.com.cn/​forum/​thread-185797-1-1.html using Google Translate :);):). P.S.- Got the instructions from http://​www.right.com.cn/​forum/​thread-185797-1-1.html using Google Translate :);):).
toh/xiaomi/mir3.1526163639.txt.gz · Last modified: 2018/05/12 22:20 by stephen304