I have several CCR2004. One of them died on site. When I arrived, both blue power lights on, no link lights. Power cycle did not fix. Back at my workbench still no link lights, has serial console output, doesn't get past "Press F1 for help" though.
Board type: CCR2004-16G-2S+
Serial number: HER091W1JAA
Firmware version: 7.8
CPU frequency: 1700 MHz
Memory size: 4096 MiB
NAND size: 128 MiB
Build time: 2023-02-24 09:06:57
eth1 MAC address: 78:9A:18:0E:0B:30
eth2 MAC address: 78:9A:18:0E:0B:31
eth3 MAC address: 78:9A:18:0E:0B:32
eth4 MAC address: 78:9A:18:0E:0B:33
eth5 MAC address: 78:9A:18:0E:0B:34
eth6 MAC address: 78:9A:18:0E:0B:35
eth7 MAC address: 78:9A:18:0E:0B:36
eth8 MAC address: 78:9A:18:0E:0B:37
eth9 MAC address: 78:9A:18:0E:0B:38
eth10 MAC address: 78:9A:18:0E:0B:39
eth11 MAC address: 78:9A:18:0E:0B:3A
eth12 MAC address: 78:9A:18:0E:0B:3B
eth13 MAC address: 78:9A:18:0E:0B:3C
eth14 MAC address: 78:9A:18:0E:0B:3D
eth15 MAC address: 78:9A:18:0E:0B:3E
eth16 MAC address: 78:9A:18:0E:0B:3F
eth17 MAC address: 78:9A:18:0E:0B:40
eth18 MAC address: 78:9A:18:0E:0B:41
MikroTik RouterOS 7.24.2 (c) 1999-2026 https://www.mikrotik.com/
Press F1 for help
stage2_loader v2.21
SPD I2C Address: 57
Executing next!
Stage 3 version: 2.21.0
Commit ID: 5e1dea9
CVOS commit ID: a14387d
HAL commit ID: 7b19d83
Build date: Jan 3 2017 15:34:47
agent_wakeup v2.10
EEPROM Revision ID = 39
Device ID = a514
Device Info: v2sil-39-rc1
Loading DT to 01100000 (24916 bytes)...
Board config ID: CCR2004-16G-2S+
al_serdes_25g_tx_pll_wa: temperature 55, swing_init 15, swing_adjusted 13
al_serdes_25g_tx_pll_wa: dosc_init 66, dosc_target 63, window_start 61, window_end 69
Serdes25G power up OK (25G mode)
dram_clear: clearing physical memory 0000000002000000 - 00000000c0000000...
dram_clear: clearing physical memory 0000000200000000 - 0000000240000000...
Loading application to 01100000 (63044 bytes)...
Executing application...
RouterBOOT booter 7.8
CCR2004-16G-2S+
CPU frequency: 1700 MHz
Memory size: 4096 MiB
NAND size: 128 MiB
MikroTik 7.24.2 (stable)
Login: admin
Password:
MMM MMM KKK TTTTTTTTTTT KKK
MMMM MMMM KKK TTTTTTTTTTT KKK
MMM MMMM MMM III KKK KKK RRRRRR OOOOOO TTT III KKK KKK
MMM MM MMM III KKKKK RRR RRR OOO OOO TTT III KKKKK
MMM MMM III KKK KKK RRRRRR OOO OOO TTT III KKK KKK
MMM MMM III KKK KKK RRR RRR OOOOOO TTT III KKK KKK
MikroTik RouterOS 7.24.2 (c) 1999-2026 https://www.mikrotik.com/
Press F1 for help