Xiaomi router 3 bricked, boot loop

Installing and Using OpenWrt
1

bricked it after trying to recover to stock from pb.
now, putty shows as follow (it cannot read any command and never stop the loop):

U-Boot 1.1.3 (Apr 15 2016 - 17:46:32)

Board: Ralink APSoC DRAM:  128 MB
Power on memory test. Memory size= 128 MB...OK!
relocate_code Pointer at: 87fb8000
enable ephy clock...done. rf reg 29 = 5
SSC disabled.
!!! nand page size = 2048, addr len=4
..============================================
Ralink UBoot Version: 4.2.S.1
--------------------------------------------
ASIC 7620_MP (Port5<->None)
DRAM_CONF_FROM: Auto-detection
DRAM_TYPE: DDR2
DRAM component: 1024 Mbits
DRAM bus: 16 bit
Total memory: 128 MBytes
Flash component: NAND Flash
Date:Apr 15 2016  Time:17:46:32
============================================
icache: sets:512, ways:4, linesz:32 ,total:65536
dcache: sets:256, ways:4, linesz:32 ,total:32768

 ##### The CPU freq = 580 MHZ ####
 estimate memory size =128 Mbytes

Please choose the operation:
   1: Load system code to SDRAM via TFTP.
   2: Load system code then write to Flash via TFTP.
   3: Boot system code via Flash (default).
   4: Entr boot command line interface.
   9: Load Boot Loader code then write to Flash via TFTP.


3: System Boot system code via Flash.
Booting System 2
..ranand_erase_write: offs:40000, count:20000
.Done!
done
## Booting image at bc600000 ...
   Image Name:   MIPS OpenWrt Linux-4.14.89
   Image Type:   MIPS Linux Kernel Image (lzma compressed)
   Data Size:    1596367 Bytes =  1.5 MB
   Load Address: 80000000
   Entry Point:  80000000
.........................   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
commandline uart_en=0 factory_mode=0 mem=128m
No initrd
## Transferring control to Linux (at address 80000000) ...
## Giving linux memsize in MB, 128

Starting kernel ...

[    0.000000] Linux version 4.14.89 (ador@ubuntu) (gcc version 7.3.0 (OpenWrt GCC 7.3.0 r7365-95daf4c441)) #0 Tue Dec 18 17:25:50 2018
[    0.000000] Board has DDR2
[    0.000000] Analog PMU set to hw control
[    0.000000] Digital PMU set to hw control
[    0.000000] SoC Type: MediaTek MT7620A ver:2 eco:6
[    0.000000] Linux version 4.14.89 (ador@ubuntu) (gcc version 7.3.0 (OpenWrt GCC 7.3.0 r7365-95daf4c441)) #0 Tue Dec 18 17:25:50 2018
[    0.000000] Board has DDR2
[    0.000000] Analog PMU set to hw control
[    0.000000] Digital PMU set to hw control
[    0.000000] SoC Type: MediaTek MT7620A ver:2 eco:6
2

PB?

If the console's read only, it'll be hard to recover...

3

hmm, could it be Pandorabox ?
https://openwrt.org/toh/xiaomi/mir3#how_to_flash_pandorabox

Recover from Softbrick
https://openwrt.org/toh/xiaomi/mir3#recovering_from_softbrick

4

pb stands for pandora-box
yes, it's stuck
maybe the tutorial i followed was not perfect

5

thanks bor.
it's stuck now, the two links not working for the router.