ZTE ZXHN H6645P support for Openwrt is possible?

For Developers
1

Hi!
There are any chance to have Openwrt on this router?

20250331_163124
20250331_1631241920×1263 270 KB

Tnx!

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1000117327
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20250331_172435
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4

The 4 pins in the first picture a little right under the square in the middle over the screw look like a fine place for an UART-cable

5

pietro@ASUS-B9440UA:~$ minicom -b 115200 -o -D /dev/ttyUSB0

Welcome to minicom 2.9

OPTIONS: I18n 
Port /dev/ttyUSB0, 19:09:03

Press CTRL-A Z for help on special keys

�SPI NAND
start read bootloader
non secure boot 
Jump

enter bootloader...
pll init, cpu freq=1100MHz
pll init done

crpm init ok
ddr4 init, rate=2133Mbps
ddr4 init done
Calibration pull UP:    0xa
Calibration pull DOWN:  0x1c

ddr init ok
SPI NAND
 >>csp_crc,  data addr:0000000088000000, crc_len:0xa4
crc=0xe09034d6, 0x1f6fcb29

 >>csp_crc,  data addr:0000000088000000, crc_len:0xa4
crc=0x403d741b, 0xbfc28be4

 >>csp_crc,  data addr:0000000088000000, crc_len:0xa4
crc=0xa6e55475, 0x591aab8a

found valid head @0x2740000
VersionLowStartAddr:0x800000, VersionHighStartAddr:0x3a00000
Skip Kernel: fs start:d20000 skip:0
Skip bad: fs start:d20000 skip:0
 >>csp_crc,  data addr:0000000088000000, crc_len:0xa4
crc=0xe09034d6, 0x1f6fcb29

 >>csp_crc,  data addr:0000000088000000, crc_len:0xa4
crc=0x403d741b, 0xbfc28be4

 >>csp_crc,  data addr:0000000088000000, crc_len:0xa4
crc=0xa6e55475, 0x591aab8a

found valid head @0x5940000
VersionLowStartAddr:0x800000, VersionHighStartAddr:0x3a00000
Skip Kernel: fs start:3f20000 skip:0
Skip bad: fs start:3f20000 skip:0
@ 0 position 
System will boot from 0.
Uboot should back 0x8 blocks
searching version@0x800000...
searching version@0x820000...
searching version@0x840000...
searching version@0x860000...
searching version@0x880000...
searching version@0x8a0000...
searching version@0x8c0000...
searching version@0x8e0000...
searching version@0x900000...
kernel found@0x900000, now back to uboot...
left 7 skips
left 6 skips
left 5 skips
left 4 skips
left 3 skips
left 2 skips
left 1 skips
left 0 skips
realaddr is 0x800000 
 >>csp_crc,  data addr:0000000088000000, crc_len:0x100000
crc=0x2096795e, 0xdf6986a1

real crc is 0xdf6986a1, header crc is 0xdf6986a1
first spin
first spin
first spin
first spin
CPUID:0 cpunoline 1 nucpus 4 try wake up secondary cpu from rom.
CPUID:1  wake up from rom.
CPUID:2  wake up from rom.
CPUID:3  wake up from rom.
cpu 1 power on
cpu 1 has been powered on

but no prompt

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