| drathir_tor | joerg: thats mean it will clear the prompt but not reset code itself ? | 00:33 |
|---|---|---|
| joerg | yes, that's what I guess happens. I actually never ever used the device-lock feature so I only can tell from what I seen or concluded from sourcecode and user reports | 01:07 |
| joerg | and my memory is somewhat foggy after all those years | 01:08 |
| joerg | what I recall quite clearly is CAL and how it works | 01:08 |
| joerg | and that CAL is not getting touched during flashing | 01:08 |
| joerg | this factoid been even used to spread a rumor that overclocking the CPU would set an un-erase'able "tainted" flag that voids guaranty | 01:10 |
| joerg | there are a few images of CAL, in case you need to restore it ;-) http://maemo.cloud-7.de/dd_if%3Dmtd1ro.bin http://maemo.cloud-7.de/mtd_debug_read_mtd1_0_0x60000.bin | 01:18 |
| joerg | both are identical iirc | 01:22 |
| joerg | one read out by dd as the link name suggests, the other with a nandread tool or sth like that | 01:22 |
| joerg | errr :o) `mtd_debug read /dev/mtd1 0 0x60000` | 01:24 |
| joerg | mtd_debug knows info, read, write, erase subcommands | 01:28 |
| joerg | mtd1 obviously is CAL | 01:29 |
| joerg | 0 to 0x60000 | 01:29 |
| joerg | https://i.imgur.com/8q5yokl.jpeg | 01:32 |
| joerg | this is for hw-version 2101, you probably will nuke your N900 when you flash it to a different hw-version | 01:34 |
| drathir_tor | joerg: i see... well good for me to take notes in case ever in future get access to some harvested n900 ;D | 01:35 |
| joerg | there also must be info about keymap in there, about IMEI maybe, about WLAN and whatnot else | 01:35 |
| mkf | ugh | 21:08 |
| mkf | i've managed to break my usb port in under two days. :( | 21:08 |
| mkf | drathir_tor: thanks. :) | 21:09 |
| mkf | can random phone repair shops fix it or it's too complicated process to be done by avg repairmen? | 21:10 |
| joerg | pretty simply actually, unless you ripped off the trace pads on PCB which happens rarely | 21:11 |
| mkf | does it need special parts? | 21:12 |
| joerg | a USB receptacle, but you probably got one ;-) | 21:13 |
| mkf | or parts of such can be found easily (for other phones?) | 21:13 |
| joerg | no | 21:13 |
| mkf | uh. so... | 21:14 |
| mkf | does it mean i should stockpile? | 21:14 |
| joerg | Torx driver, Philips driver iirc, and soldering equipment that's small enough to get there. And be very careful with unplugging the flat plastic connector from main PCB to display | 21:15 |
| mkf | hm to be fair it still works | 21:17 |
| mkf | it's metal shielding (is that the proper word?) for the connector is just partly torn | 21:18 |
| joerg | https://talk.maemo.org/showthread.php?t=54762 | 21:19 |
| mkf | should i worry or i actually need to repair it? | 21:19 |
| joerg | needs repair | 21:19 |
| mkf | =( | 21:20 |
| mkf | okay. thanks. | 21:20 |
| joerg | sorry, better thread: https://talk.maemo.org/showthread.php?t=45385 | 21:21 |
| joerg | https://talk.maemo.org/showthread.php?p=547991#post547991 | 21:21 |
| mkf | crap. mine looks like that one. | 21:23 |
| mkf | is there is a way to avoid this happening in the future? | 21:23 |
| mkf | my usb cable already had very very tiny tooth | 21:23 |
| mkf | hm epoxy. | 21:24 |
| joerg | di NOT use epoxy! it'spointless | 21:26 |
| mkf | oh so. nothing i can do. | 21:27 |
| joerg | use solder to solder the USB port down to the PCB properly, like blue_led did and shown in his pictures | 21:27 |
| mkf | what happens if i dont do anything about it? | 21:28 |
| joerg | eventually the 5 contacts for charging and flashing will tear off and then it's damaged | 21:30 |
| joerg | you can't flash anymore, you could charge battery externally | 21:31 |
| mkf | would it still be as easy as it is to fix now? | 21:33 |
| joerg | https://talk.maemo.org/showthread.php?p=997818#post997818 no, it might get damaged in a way that makes <---- this necessary. etter fix before it breaks completely | 21:34 |
| drathir_tor | mkf: thats like only thing which capable to break in n900 ^^ ;p (there is also screen and kb but them just break bc of material wearing oh and rare but possible too sim/sd card slot but assume this one just bc ppl not being carefull) | 21:36 |
| joerg | https://talk.maemo.org/showthread.php?p=1016358#post1016358 | 21:37 |
| drathir_tor | mkf: its depend if the pcb is inact than is possible solder new one and glue to board if pcb lines is rip off than sadly not as easy... | 21:37 |
| KotCzarny | there is also modem issue | 21:38 |
| KotCzarny | ;) | 21:38 |
| drathir_tor | KotCzarny: thats new one for me what signs of this one ? | 21:38 |
| KotCzarny | drathir_tor: yellow bar about modem not working | 21:39 |
| KotCzarny | most likely caused by breaking solder due to keyboard hard presses | 21:39 |
| KotCzarny | and mobo flexing | 21:39 |
| mkf | okay, thanks joerg, drathir_tor. :) | 21:39 |
| drathir_tor | KotCzarny: ouch thats sounds nasty for repair... | 21:40 |
| mkf | i'll send it to a repair shop in a week. | 21:40 |
| joerg | again, do NOT use glue | 21:45 |
| joerg | yep, KotCzarny is right | 21:46 |
| joerg | drathir_tor: I think there's no reliable feasible repair for "No SIM" error which actually usually means "CellMo not replying" | 22:01 |
| joerg | "don't press kbd too hard" is a good advice. OTOH Cellmo can do GSM (2G) and UMTS(3G) which is EOL pretty much everywhere now, maybe 2G still available for really low bandwidth (14.4k) and voice | 22:05 |
| joerg | worse: cellmo also provides GPS, so that will fail as well, I think | 22:48 |
| drathir_tor | joerg: gps could be useful in some scenarios to workaround assume there probably could be possible use bt based gps devices still better be careful to not damage thi one... | 22:54 |
| joerg | yes | 23:22 |
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