**** BEGIN LOGGING AT Fri May 16 02:59:58 2014 May 16 10:22:41 ok my n900 is officialy dying now ;( May 16 10:22:41 won't charge anymore May 16 10:22:41 guess the game is off for me May 16 10:23:27 :-( May 16 12:38:37 sigh May 16 12:39:07 any hope for the future of maemo? May 16 12:42:08 neo900? May 16 12:44:07 the neo900 will run maemo? Good. Any other project that might want to keep maemo alive? May 16 12:53:10 the idea is to port fremantle to neo900 May 16 13:11:43 moin :) May 16 14:25:08 ~fptf May 16 14:25:09 somebody said fptf was the Fremantle Porting Task Force, see http://talk.maemo.org/showthread.php?t=91308 May 16 17:11:52 hi i ned to resolder the usb plug on the n900 bioard; i have removed the mobo; can i safely remove the small card with the sd card slot on it ? May 16 17:14:25 yes, it's attached by doublesided sticky tape May 16 17:14:35 you know May 16 17:14:38 ~usbfix May 16 17:14:39 hmm... usbfix is http://talk.maemo.org/showthread.php?t=75920 - and **NEVER** use epoxy (unless you want to seal your device for underwater), or http://www.youtube.com/watch?list=PL2862BF3631A5C1AA&feature=player_detailpage&v=fYz5nIHH0iY#t=1861, or you will basically need two irons May 16 17:14:40 Was it the cable that's extremely fragile? May 16 17:15:14 no, this cable is a bit less fragile, but breaking it is a total loss of mobo May 16 17:15:52 nevertheless yes, you should be careful with the flex cable between main and daughter board May 16 17:16:24 brianfergus: you might want to try and keep the ds sticky intact May 16 17:17:34 or completely remove it prior to reassembly. It's not really mandatory but helps. You could create a new frame of sticky tape when old one breaks, but that's a tedious job May 16 17:17:49 DocScrutinizer05, ok so not removing the sd subcard is better ? May 16 17:18:10 brianfergus: no, you defintely should remove it to reach the USB May 16 17:18:43 carefully pry it off at 'inner' end (opposite of cable) May 16 17:19:54 DocScrutinizer05, ok the resistance is just a double tape then May 16 17:20:00 i can slightly pry May 16 17:20:04 yes May 16 17:20:08 adn then just leave it attache by the cable May 16 17:20:09 solder May 16 17:20:20 and then put back with a small double tape too May 16 17:20:25 DocScrutinizer05, ok thanks May 16 17:20:34 http://maemo.cloud-7.de/share-service/20140516_001.jpg May 16 17:21:08 the rubber frame and ds-sticky attached to the main board in this one, and I placed some alu foil on top to protect it May 16 17:22:16 DocScrutinizer05, nice thanks; i was always looking for alt phone ;( May 16 17:22:32 (sorry for all the dirt, N900 cam boosts the smallest dust to look like terrible gue) May 16 17:23:23 don't forget to protect camera lens with some scotch tape or whatever, so you don't ruin it by soldering iron! May 16 17:24:16 also don't bend the flex cable into opposite direction! May 16 17:24:21 DocScrutinizer05, there is 2 pin on the left side i see unsildered here May 16 17:24:31 it the same ground no ? May 16 17:24:40 sorry? May 16 17:24:45 plse rephrase May 16 17:25:37 DocScrutinizer05, the usb plu has 2 pin on the left side ; i guess this is the ground May 16 17:25:50 i can short cut both together ? May 16 17:25:53 like here : http://talk.maemo.org/showthread.php?t=75920 May 16 17:26:41 no, all 5 pins are different signals, none of them may get shorted to any other May 16 17:27:51 DocScrutinizer05, but those big ones located on both sides May 16 17:27:56 do NOT do this https://dl.dropboxusercontent.com/u/29047266/N900 Stuff/USB Fix/DSCN2093.png May 16 17:27:59 DocScrutinizer05, all are grounded no ? May 16 17:28:03 yes May 16 17:28:16 they are basically only mech support, not electrical May 16 17:28:37 DocScrutinizer05, ok i hope that soldering thise only will get me back all needed contact May 16 17:28:52 it is not completly unsoldered May 16 17:28:58 the electrical contacts are on backside of receptacle May 16 17:28:59 if i push on one side i can charge May 16 17:29:06 DocScrutinizer05, ok figured out thanks May 16 17:29:12 hope not to lost the phone ;( May 16 17:29:47 you should try to resolder those, but only when you can makes sure you're not shorting one to the other by trying to resolder them May 16 17:30:34 ((do NOT do this)) bend daughter board to backside May 16 17:30:49 it is prone to damage the flex cable May 16 17:33:09 probably a pretty good plan would be to apply proper SMT flux to the backside 5 "wires" and solder pads, then use hot air to heat up locally in the gap between the USB and the steel can until solder reflows May 16 17:33:56 DocScrutinizer05, yeah thanks trying that May 16 17:34:04 *afer* you properly soldered down to the PCB all the 4 mech posts at both sides of the USB May 16 17:34:12 *after* May 16 17:35:01 push down the USB to the PCB while solder on those mech posts is liquid and cooling/curing May 16 17:35:34 looks like most os us go through this :) May 16 17:35:56 you need a rather "strong" and "heavy" soldering iron for those mech posts to solder them. Like maybe a 60W iron May 16 17:36:24 the PCB sucks away much of the heat, a weak small iron can't do that May 16 17:36:44 http://www.youtube.com/watch?list=PL2862BF3631A5C1AA&feature=player_detailpage&v=fYz5nIHH0iY#t=1861 May 16 17:40:01 ((looks like most os us go through this)) sooner or later, yeah. I been one of the lucky 7 who didn't yet, despite using 2 or sometimes 3 of N900 concurrently May 16 17:40:21 brianfergus: goo luck! May 16 17:40:31 brianfergus: good luck! :-D May 16 17:42:44 actually with original USB receptacle component it's impossible to even inspect the 5 electrical pins/solderpoints, unless you use your dremel to carefully cut away the steel "roof" that covers them May 16 17:44:29 shows the problem May 16 17:48:41 refer to http: // maemo.cloud-7.de/Gallery-N900-exploded/platine_02. jpeg to get an idea what the pads look like and where they are, which size, and so on May 16 17:50:01 maybe more convenient: http://wstaw.org/m/2014/05/16/plasma-desktopP31889.png May 16 17:56:50 http://wstaw.org/m/2014/05/16/plasma-desktopu31889.png is marking in red the area you shall scratch off the green varnish so shiny copper gets exposed to do proper strudy solder joints fixin the USB May 16 17:57:38 then make sure your solder blobs are not too think so they would "collide" with plastic case parts May 16 17:58:41 worst case carefully file off plastic and/or solder until everything fits **** ENDING LOGGING AT Sat May 17 02:59:59 2014