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BMW Icom A2 repair
09-05-2022, 07:05 AM,
Post: #121
RE: BMW Icom A2 repair
(07-05-2022, 22:18 PM)ferrum Wrote:  check:
the presence of a voltage of 5v.
Activation signal 1562 for 2025
Replacement often required 2025

ICOM will work even if you remove 1562 but for usb to work 1562 must be initialized on the bus PCI
after activation PCI, 1562 gives a signal for USB power supply

Hello, Mr. ferrum, I have checked all the surrounding facilities .5V power supply also exists! and replaced 2025, but it still does not work. Now the symptom is that the system light flashes green, and the network light does not respond when the network cable is inserted!

Is this a symptom when the CPU cannot read 24C02?
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09-05-2022, 10:25 AM,
Post: #122
RE: BMW Icom A2 repair
24c02 is needed at an earlier stage and most likely it is error the initialization of the PCI component.
Perhaps 1562 is not working or there is no connection 1562 with the processor.
Reputation: +1 - BMWF750GS [+1]
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10-05-2022, 02:34 AM,
Post: #123
RE: BMW Icom A2 repair
(09-05-2022, 10:25 AM)ferrum Wrote:  24c02 is needed at an earlier stage and most likely it is error the initialization of the PCI component.
Perhaps 1562 is not working or there is no connection 1562 with the processor.

I removed 24C02, icOM can only flash all LED once red, it means your analysis is correct, the system flashes green, it is an initialization error!

I feel clueless right now!!
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10-05-2022, 20:08 PM,
Post: #124
RE: BMW Icom A2 repair
Everything points to the fact that 1562 is not working. The reason may be both a breakdown in 1562 and the lack of connections to the processor.
Reputation: +1 - BMWF750GS [+1]
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17-05-2022, 16:12 PM,
Post: #125
RE: BMW Icom A2 repair
(29-04-2022, 21:28 PM) ferrum Wrote:  KIMZ
Apparently yes, you will have to replace 29GL064. You have taken too many erratic actions.
This chip must be programmed on a programmer such as RT809H or TNM5000 before soldering
I think there is a malfunction and until it is fixed you will not be able to make an update. Post a photo of the boards and maybe I will see some other errors known to me

SEBADIUM
This is the first time I see such art.

Today I programmed a new 29gl064, also soldered a new nand samung and then the same, I was able to run the ICOM through icom_restore to the old v130 version (others did not work - 3 red LEDs and one green LED loop) after that I updated via WEB to v133, 137 and to v140 . I can't go higher now, in any case the boot image goes without a problem, then the application image when I confirm checksum after 15 seconds icom keeps restarting while the browser keeps refreshing the page. After next reboot i have still same firmware.

Code:
2022-05-17T17:54:06    info    116    Init firmwareupdate 0 /tmp/ICOM-BootImage-01-29-00.bin

2022-05-17T17:54:06    info    35    0 0 2 0 0 2
2022-05-17T17:54:06    info    264    Active Bootimage 0
2022-05-17T17:54:06    info    268    Active: 0
2022-05-17T17:54:06    info    283    Do Update at Img 1
2022-05-17T17:54:53    info    170    Update Bootimage done
2022-05-17T17:54:53    info    35    ~ 0 0 2 0 0 2
2022-05-17T17:55:46    info    116    Init firmwareupdate 1 /tmp/ICOM-ApplicationImage-01-45-00.bin
2022-05-17T17:55:46    info    35    0 0 2 0 0 2
2022-05-17T17:55:46    info    297    Active Appimage 0
2022-05-17T17:55:46    info    303    Active: 0
2022-05-17T17:55:46    info    317    Do Update at img 1
2017-07-28T11:18:18    info    343    Can't open temporary flag file /tmp/bootimg for reading
2017-07-28T11:18:18    info    343    Can't open temporary flag file /tmp/appimg for reading
2017-07-28T11:18:18    info    343    Can't open temporary flag file /tmp/bootimg for reading
2017-07-28T11:18:18    info    343    Can't open temporary flag file /tmp/appimg for reading
2017-07-28T11:18:52    info    343    Can't open temporary flag file /tmp/bootimg for reading
2017-07-28T11:18:52    info    343    Can't open temporary flag file /tmp/appimg for reading
2017-07-28T11:18:52    info    343    Can't open temporary flag file /tmp/bootimg for reading
2017-07-28T11:18:52    info    343    Can't open temporary flag file /tmp/appimg for reading
2017-07-28T11:21:11    info    116    Init firmwareupdate 0 /tmp/ICOM-BootImage-01-25-03.bin
2017-07-28T11:21:11    info    35    0 0 2 0 0 2
2017-07-28T11:21:11    info    264    Active Bootimage 0
2017-07-28T11:21:11    info    268    Active: 0
2017-07-28T11:21:11    info    283    Do Update at Img 1
2017-07-28T11:21:57    info    170    Update Bootimage done
2017-07-28T11:21:57    info    35    ~ 0 0 2 0 0 2
2017-07-28T11:23:23    info    343    Can't open temporary flag file /tmp/appimg for reading
2017-07-28T11:23:23    info    343    Can't open temporary flag file /tmp/appimg for reading
2017-07-28T11:26:30    info    116    Init firmwareupdate 1 /tmp/ICOM-ApplicationImage-01-40-06.bin
2017-07-28T11:26:30    info    35    0 0 2 0 0 2
2017-07-28T11:26:30    info    297    Active Appimage 0
2017-07-28T11:26:30    info    303    Active: 0
2017-07-28T11:26:30    info    317    Do Update at img 1
2017-07-28T11:18:18    info    343    Can't open temporary flag file /tmp/bootimg for reading
2017-07-28T11:18:18    info    343    Can't open temporary flag file /tmp/appimg for reading
2017-07-28T11:18:18    info    343    Can't open temporary flag file /tmp/bootimg for reading
2017-07-28T11:18:18    info    343    Can't open temporary flag file /tmp/appimg for reading


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21-05-2022, 19:15 PM,
Post: #126
RE: BMW Icom A2 repair
i bricked my icom a2 today, i changed the serial in the eprom 24c02 and soldered it back in correctly and measured for correct soldering. I then put the ICOM_Restore.bin on a USB stick and plugged it into the icom. after powering up the icom, i tried to hold down the reset button but it didn't show any function, after all this the icom no longer boots correctly. all leds light up red and shortly after the current is supplied, the LAN and the COMM led flash quickly. I only saw afterwards that the reset switch is probably not connected at all, where does it have to be soldered? I have the icom a2 clone with a PCB without wifi.
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22-05-2022, 08:43 AM,
Post: #127
RE: BMW Icom A2 repair
i can not recover the icom, where is the reset switch connected?. over ssh i can connect on 10.2.0.2 but authenticated with, (server sent: publickey)
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22-05-2022, 08:56 AM,
Post: #128
RE: BMW Icom A2 repair
post 61

https://cartechnology.co.uk/showthread.p...989&page=7
Reputation: +1 - paui [+1]
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22-05-2022, 09:24 AM,
Post: #129
RE: BMW Icom A2 repair
i have not this connection for the reset switch

the pcb looks like this


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22-05-2022, 10:50 AM,
Post: #130
RE: BMW Icom A2 repair
(10-05-2022, 20:08 PM)ferrum Wrote:  Everything points to the fact that 1562 is not working. The reason may be both a breakdown in 1562 and the lack of connections to the processor.

Hello, Mr. Ferrum. First of all, thank you very much for your patient answer before. The ICOM A2 that troubled me before has been repaired. The reason is mega16A diswelding, reheating, problem solved!!Thank you again, great respect!
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