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06:57.20 | clapont | hi everyone! |
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11:48.50 | *** join/#neo900 _Chris_ (~Chris@p5DE1A05B.dip0.t-ipconnect.de) |
15:01.01 | atk | Damn |
15:01.20 | atk | I think some of the balls on the BGA chip on my N900 have cracked. |
15:01.26 | atk | I'm getting those infamous sim card issues. |
15:01.54 | atk | I guess it's time to find an old dried up pen and cut the spring into some pressure thingimajigs. |
15:04.42 | DocScrutinizer05 | I wonder if there's a way to check what really defect |
15:05.17 | DocScrutinizer05 | at least SIM contacts should show some electrical properties different from dangling wire |
15:05.41 | DocScrutinizer05 | but there are so many more BGA ball connections on modem |
15:06.04 | DocScrutinizer05 | first you might check if modem still responsive at all |
15:06.09 | DocScrutinizer05 | pnatd might help |
15:06.51 | DocScrutinizer05 | if you can talk to modem, you cpuld query quite a few status-related infos |
15:07.33 | DocScrutinizer05 | like generic access to SIM, available networks (antenna / generic RF frontend) |
15:09.21 | atk | It works when I reboot the phone |
15:09.48 | atk | but I dropped my phone on a hard floor about a week ago and now it just stops working randomly until a reboot |
15:09.59 | DocScrutinizer05 | hmmmm |
15:10.08 | DocScrutinizer05 | not good |
15:10.23 | atk | yeah, I'm pretty annoyed about the drop, it worked perfectly well before then. |
15:11.34 | DocScrutinizer05 | maybe first of all check signal quality to verify the mere antenna thingie has cobtact to the PCB |
15:12.35 | atk | how would I check the signal quality? When it works I get 5 bars. |
15:12.53 | DocScrutinizer05 | it's a C-spring that sits on a copper (gold?) pad for years. collecting dirt and oxides around the contact point. Now a hard impact could minimally relocate the C-spring contact point, right into the dirt zone |
15:13.07 | atk | hmm |
15:13.50 | atk | Might be, the phone I took this motherboard out of literally looked like someone had shoved it up a car exhaust pipe for a week |
15:22.30 | Joerg-Neo900 | no tracking |
15:22.34 | Joerg-Neo900 | no iinsurance |
15:22.41 | Joerg-Neo900 | oops |
15:27.35 | Joerg-Neo900 | please first try pnatd something like "ATI" |
15:28.38 | Joerg-Neo900 | the AT-interpreter in BB5 and pnatd is pathetic, but a few useful data bits are available for sure |
15:32.08 | atk | ATI just gives "Nokia" |
15:32.20 | atk | lol |
15:32.33 | Joerg-Neo900 | https://i.imgur.com/Phpr47G.png |
15:33.16 | atk | same on my screen |
15:34.05 | Joerg-Neo900 | so the modem is up and running and the comm lines to OMAP are working |
15:34.53 | atk | hmm |
15:35.34 | Joerg-Neo900 | https://radekp.github.io/qtmoko/api/atcommands.html |
15:35.55 | Joerg-Neo900 | haha radekp/openmoko how funny I didn't even see |
15:36.53 | Joerg-Neo900 | at+cfun? |
15:36.55 | Joerg-Neo900 | +CFUN: 1 |
15:37.23 | Joerg-Neo900 | at+cfun=? |
15:37.24 | Joerg-Neo900 | +CFUN: (0,1,4),(0,1) |
15:38.06 | Joerg-Neo900 | =? is "what are the allowed parameters?" ? is "what is current state?" |
15:38.30 | Joerg-Neo900 | +CFUN is current state of modem |
15:38.45 | Joerg-Neo900 | related e.g. to airplane mode etc |
15:39.16 | Joerg-Neo900 | AT+CSQSignal quality |
15:39.43 | Joerg-Neo900 | ERROR on N900 |
15:39.57 | Joerg-Neo900 | what a crippled AT interface |
15:40.04 | atk | hmm |
15:40.13 | atk | on mine at+csq gives: +CSQ: 99,99 |
15:40.35 | Joerg-Neo900 | ed |
15:40.49 | Joerg-Neo900 | what the |
15:40.59 | Joerg-Neo900 | Oh I see, no "?" needed |
15:41.24 | Joerg-Neo900 | +CSQ: 15,99 |
15:41.35 | atk | hmm |
15:41.42 | atk | so 99 probably means the worst signal quality possible? |
15:41.43 | Joerg-Neo900 | 99 is prolly same as "no signal" |
15:41.47 | Joerg-Neo900 | yes |
15:41.51 | atk | I'll open it up and look at the aerial thing |
15:42.01 | Joerg-Neo900 | :nod: |
15:42.14 | Joerg-Neo900 | check SIM maybe |
15:42.22 | Joerg-Neo900 | moment please |
15:43.47 | Joerg-Neo900 | AT+CIMI |
15:43.49 | Joerg-Neo900 | 262074910014095 |
15:45.50 | atk | I get an error |
15:49.27 | Joerg-Neo900 | https://www.sierrawireless.com/resources/documents/support/2130617_supported_at_command_reference-v2.4.pdf |
15:49.42 | Joerg-Neo900 | error means you're not logged in to network |
15:49.54 | Joerg-Neo900 | this command queries IMSI |
15:51.53 | Joerg-Neo900 | AT+CNUM my own number |
15:52.15 | atk | alright, which contact is the one for the antenna? |
15:52.53 | Joerg-Neo900 | there's a "contacts" whitepaper n resources IIRC |
15:54.21 | Joerg-Neo900 | http://neo900.org/stuff/werner/springs/ |
15:55.16 | Joerg-Neo900 | P703/4/5 |
15:56.59 | Joerg-Neo900 | atk: you found it? |
15:57.09 | atk | yeah |
15:57.10 | atk | I found the 3 contacts |
15:57.30 | atk | just scraped at them with a precision screwdriver, we'll see what happens |
15:57.33 | atk | they were all quite dirty |
15:58.00 | Joerg-Neo900 | check the pads in antenna plastic blob, they often look really terrible |
15:58.18 | Joerg-Neo900 | ought to be gold plated and shiny |
16:00.01 | Joerg-Neo900 | suddenly got an idea of the real reason the manufs opted for watertight smartphones: suddenly no more problems with dirt inside device, at all |
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16:02.14 | atk | Looks promising, I got network time on the boot screen. |
16:02.24 | atk | Well, I have a network connection again |
16:02.34 | atk | I'll use it for a day and see if it breaks again. |
16:02.35 | Joerg-Neo900 | :-D |
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16:34.40 | sixwheeledbeast | check battery antennas and sim tray are not damaged or loose from the drop |
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16:48.30 | atk | the sim tray is as loose/tight as it has ever been |
16:48.38 | atk | same with battery |
16:48.45 | atk | but yeah, the antenna contacts seemed a bit dirty |
16:49.18 | atk | and this phone has been in use for like 4 years now |
16:49.30 | atk | and probably 1 to 3 years by the original owner? |
16:49.32 | atk | maybe more |
16:49.45 | atk | actually, when I got it, it looked like the original owner had installed a new kernel so maybe he was a power user |
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17:45.33 | rEv9 | Joerg-Neo900: you should update the webpage/topic with what you said on http://maemo.cloud-7.de/irclogs/freenode/_neo900/_neo900.2019-04-15.log.html -- that you're looking for someone to work on the proto_v2 layout. maybe someone else can help out ? |
17:45.57 | rEv9 | I miss using my N900 :D |
17:55.33 | Joerg-Neo900 | rEv9: sorry, the time was faster than Neo900 evolution. The project isn't really plausible anymore. Too many roadblocks that can't get overcome, unless we would find a sponsor for STEP2 |
17:57.24 | Joerg-Neo900 | even if we could finalize layout for proto_v2, we have no more funds to build it, and even if we coould build it, we couldn't find enough mech-kits (display, case etc) to produce the number of devices needed to break-even on production cost |
17:57.28 | *** join/#neo900 _Chris_ (~Chris@p5DE1A05B.dip0.t-ipconnect.de) |
17:58.44 | Joerg-Neo900 | too many prospect customers thought they better wait until we're shipping before they place an order |
17:59.07 | Joerg-Neo900 | now it's too late, the opportunities dwindled |
18:16.57 | rEv9 | Joerg-Neo900: I understand :/ |
18:46.50 | Joerg-Neo900 | it's a pity. Sorry for not having better news |
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20:40.21 | sixwheeledbeast | Open source alternative to GPS seems interesting https://www.open-electronics.org/aweigh-the-open-source-alternative-to-gps/ |
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