I just got hold of a GS1900-8HP v3. Serial connection is identical layout to the v1 & v2 (no surprise).
Boot log doesn't have much so wondering what to try? I'm a total novice at uart other that flashing my BT HH5!
Is it safe for me to try TFTP booting a V2 initramfs image, for example, with bootm?
Or anything interesting I can get from the uboot/stock CLI for people to look at?
-Boot Version: 2.0.2.1 (May 21 2021 - 12:21:20)
CPU: 500MHz
DRAM: 128 MB
FLASH: 16 MB
Model: ZyXEL_GS1900_8HPv2a
...
Press SPACE to abort boot script: 0
## Booting image from partition ... 0
Version: V2.70.0
Created: 2021-10-22 5:26:42 UTC
Size: 6002761 Bytes = 5.7 MB
Verifying Checksum ... OK
Uncompressing Image ... OK
RTL838x# flshow
=============== FLASH Partition Layout ===============
Index Name Size Address
------------------------------------------------------
0 LOADER 0x40000 0xb4000000-0xb403ffff
1 BDINFO 0x10000 0xb4040000-0xb404ffff
2 SYSINFO 0x10000 0xb4050000-0xb405ffff
3 JFFS2_CFG 0x100000 0xb4060000-0xb415ffff
4 JFFS2_LOG 0x100000 0xb4160000-0xb425ffff
5 RUNTIME1 0x6d0000 0xb4260000-0xb492ffff
6 RUNTIME2 0x6d0000 0xb4930000-0xb4ffffff
======================================================
GS1900# show version
Boot Version : V2.0.2.1 | 05/21/2021
Firmware Version : V2.70(AAHI.0) | 10/22/2021
GS1900# show startup-config
! System Description: ZyXEL GS1900-8HP Switch
! Revision: B2