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Old stuff for Nokia 770 (0)
to Nokia 770 by teroyk - 27 mins ago - more...
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2012-06-08
, 20:53
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Posts: 5,028 |
Thanked: 8,613 times |
Joined on Mar 2011
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#142
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+ to the above, but, if You decide to do so, please, be sure that You won't solder any 2 pins together (except for ID pin and mass, it can be made one without any negative results).
BTw, my "trick" for reflowing in situations like that, all pins at once - I've tip ressembling screwdriver ending (flat one), which is quite big as whole, but have thin ending. due to this, it accumulate much heat. Then, considering it's shape, You can touch all 5 pins at once - they should get relowed quite quickly.
home made alternative would be to cut tip of screwdriver, and replace soldering iron tip with it. It won't be effective as my copper one, yet, should do the job as well.
/Estel
Last edited by Estel; 2012-06-08 at 20:55.
BTw, my "trick" for reflowing in situations like that, all pins at once - I've tip ressembling screwdriver ending (flat one), which is quite big as whole, but have thin ending. due to this, it accumulate much heat. Then, considering it's shape, You can touch all 5 pins at once - they should get relowed quite quickly.
home made alternative would be to cut tip of screwdriver, and replace soldering iron tip with it. It won't be effective as my copper one, yet, should do the job as well.
/Estel
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N900's aluminum backcover / body replacement
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-
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Hardware's mods research is costly. To support my work, please consider donating. Thank You!
Last edited by Estel; 2012-06-08 at 20:55.
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2012-06-20
, 22:56
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Posts: 345 |
Thanked: 117 times |
Joined on Jan 2010
@ uk
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#144
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I'm getting this happening AGAIN. This will be the 3rd time. (no I'm not careless lol).
This last time I have seriously only plaugged the thing in 30 to 40 times since I got this replacement from nokia. The reason being, when it happened back in November I decided to go get myself a new contract with a galaxy note, so I've been using that every day and the n900 for car journeys and random other things, so haven't needed to charge much. I am wondering if the replacement they gave me must have already been on the verge of going.
Anyway, so I know I wont get another one back from nokia this time, as they can't have any left by now and I really want to keep this longer term, so I eed to fix the usb.At the moment I can still charge if I put some light pressure down on it. Going to attempt it overnight with placing something on the wire tonight.
I've skimmed through this thread to see how much people charge for the service but couldn't find ananswer there. Is it different for everyone depending on the case? I'm in the UK. Lancahire. I possibly could have a go at it but finding the time, and worryingabout doing it properly are making me think asking an expert might be better. I shall pm the UK person from the first post too.
This last time I have seriously only plaugged the thing in 30 to 40 times since I got this replacement from nokia. The reason being, when it happened back in November I decided to go get myself a new contract with a galaxy note, so I've been using that every day and the n900 for car journeys and random other things, so haven't needed to charge much. I am wondering if the replacement they gave me must have already been on the verge of going.
Anyway, so I know I wont get another one back from nokia this time, as they can't have any left by now and I really want to keep this longer term, so I eed to fix the usb.At the moment I can still charge if I put some light pressure down on it. Going to attempt it overnight with placing something on the wire tonight.
I've skimmed through this thread to see how much people charge for the service but couldn't find ananswer there. Is it different for everyone depending on the case? I'm in the UK. Lancahire. I possibly could have a go at it but finding the time, and worryingabout doing it properly are making me think asking an expert might be better. I shall pm the UK person from the first post too.
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2012-06-20
, 23:05
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Posts: 1,503 |
Thanked: 2,688 times |
Joined on Oct 2010
@ Denmark
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#145
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Just a note, keeping pressure will lead to earlier break off, you HAVE to get this fixed NOW, it sound's like loose connections at the pins, this can be fixed, i do not offer that service since i don't have the equipment to do that, i only do the strengthening of the USB frame.
If you wait and it breaks of the FIX will be MUCH harder then it will at this point
Oh and did you file/sand of the teeth of the USB plug?
If you wait and it breaks of the FIX will be MUCH harder then it will at this point
Oh and did you file/sand of the teeth of the USB plug?
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N900 @ 850MHz (LV) & 3044mAh Battery
Battery Tests and Battery Mod / Homemade 3000mAh XL Battery - (DONATE)
Custom Brightness & No Light Sensor
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Fix you USB before and after it breaks
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2012-06-21
, 08:59
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Posts: 309 |
Thanked: 456 times |
Joined on Jan 2010
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#146
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The central point of the USB port is loose, I'm definitely not confortable trying to apply heat directly to this with the risk of melting it, but if thats what I need to do to make it secure again I'll have a go heating up a small screwdriver and applying it directly to the pins inside the housing.
Failing that, I will contact SEKI to see if he can help
Failing that, I will contact SEKI to see if he can help
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2012-06-21
, 13:50
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Posts: 345 |
Thanked: 117 times |
Joined on Jan 2010
@ uk
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#147
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Just wondering if anyone has experience with the port charging when you place a little pressure on it. Does this mean it is likey that will always remain even after a fix? Or does it mean that the fix will repair that as well? Or on the other hamd is it sometimes yes and sometimes no.
I know I should have had the preventative measure done a long time ago but figures I was safe for a while as I wasn't using it much.
I'm just trying to plan ahead and thinking if I should stock up on more batteries or something.
I know I should have had the preventative measure done a long time ago but figures I was safe for a while as I wasn't using it much.
I'm just trying to plan ahead and thinking if I should stock up on more batteries or something.
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2012-06-21
, 14:05
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Banned |
Posts: 3,412 |
Thanked: 1,043 times |
Joined on Feb 2010
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#148
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The way to solder the usb port if it has worked loose but still in place is to have a third hand or someone help you put some slight pressure in the centre top of the shield surrounding the port while you use a very slim long round tip soldering iron that does not have to be too hot just hot enough to melt the solder on the pins, keep the pressure applied and work fast touching all the legs at the rear of the port back and forward until they re-solder themselves into place and the port is sitting flat as it was beforehand, once you have done this you can apply solder in a minute form to each leg to finish the job.
Before putting it all back together check you have no shorts and if you can follow the picture you will see where each pin of the port goes to, if you check continuity from the legs of the port to the components they are linked too without any problems then your done, put it all back together and test.
The latter is also a testing procedure to find out if your port is attached or not as it is often the case the break can not be seen, remember we are dealing with through hole here and not tracks running out from the usb port itself.
The easiest and safest way to cure a detached port of one or more pins that do not make after the soldering attempt is to wire from pin to the component and you will have to follow wiring diagrams and pics that have been posted on here by some very helpful members.
Last edited by abill_uk; 2012-06-21 at 14:08.
Before putting it all back together check you have no shorts and if you can follow the picture you will see where each pin of the port goes to, if you check continuity from the legs of the port to the components they are linked too without any problems then your done, put it all back together and test.
The latter is also a testing procedure to find out if your port is attached or not as it is often the case the break can not be seen, remember we are dealing with through hole here and not tracks running out from the usb port itself.
The easiest and safest way to cure a detached port of one or more pins that do not make after the soldering attempt is to wire from pin to the component and you will have to follow wiring diagrams and pics that have been posted on here by some very helpful members.
Last edited by abill_uk; 2012-06-21 at 14:08.
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2012-06-21
, 14:26
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Banned |
Posts: 3,412 |
Thanked: 1,043 times |
Joined on Feb 2010
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#149
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For those who are capable of tiny component soldering that do not have the much needed soldering tip to do the job here is a way of making a tip to do the job.......
Ok now get a sewing needle and cut it as long as your tip is and 2mm longer, tie this by wrapping stiff wire around and around to the tip as tight as possible untill the "needle" does not move and is solid on the tip, now you have to tin the needle by either using flux and if the solder does not stay on the tip that means it is dirty so you have to clean it or file it until it accepts solder as your normal soldering tip will.
Do this and you will have a soldering tip that will be capable of soldering the tiny legs of the usb port back to the board, just remember that you MUST solder the jacket down in all cases as it is explained on here to keep the port in place.
I actually use a weller soldering station about 15 year old now and i have used this method when i needed a tip to do the job (because the weller tip burnt out) but you can actually use any soldering iron 25w or more as long as the needle is long enough to do the job so dont cut it too short ok.
If anyone needs further advice i will help.
Ok now get a sewing needle and cut it as long as your tip is and 2mm longer, tie this by wrapping stiff wire around and around to the tip as tight as possible untill the "needle" does not move and is solid on the tip, now you have to tin the needle by either using flux and if the solder does not stay on the tip that means it is dirty so you have to clean it or file it until it accepts solder as your normal soldering tip will.
Do this and you will have a soldering tip that will be capable of soldering the tiny legs of the usb port back to the board, just remember that you MUST solder the jacket down in all cases as it is explained on here to keep the port in place.
I actually use a weller soldering station about 15 year old now and i have used this method when i needed a tip to do the job (because the weller tip burnt out) but you can actually use any soldering iron 25w or more as long as the needle is long enough to do the job so dont cut it too short ok.
If anyone needs further advice i will help.
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2012-06-21
, 14:35
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Banned |
Posts: 3,412 |
Thanked: 1,043 times |
Joined on Feb 2010
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#150
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Originally Posted by kyllerbuzcut
Your port is not attached on all pins you MUST solder it down before you have a fully detached port.
Just wondering if anyone has experience with the port charging when you place a little pressure on it. Does this mean it is likey that will always remain even after a fix? Or does it mean that the fix will repair that as well? Or on the other hamd is it sometimes yes and sometimes no.
I know I should have had the preventative measure done a long time ago but figures I was safe for a while as I wasn't using it much.
I'm just trying to plan ahead and thinking if I should stock up on more batteries or something.
Once done your problem will not be there no more.
N900 @ 850MHz (LV) & 3044mAh Battery
Battery Tests and Battery Mod / Homemade 3000mAh XL Battery - (DONATE)
Custom Brightness & No Light Sensor
N900 DIY Micro Amplifier, turn your N900 into a home stereo
Fix you USB before and after it breaks
Feel free to contact me through PM, Skype or G.Talk