markus weiher

35,967	Reputation
1,320	Solutions
0	Guides
Member Since 02/17/2010

sometimes i can fix things - and sometimes not -)

at least i'm trying

be careful, i like to use digital multimeters, infrared thermometers, hot air soldering stations and i need a lot of alcohol (but only isopropyl with more than 90%)

Team

Master Techs

Working to save the public money and time.

Votes

126

Teardowns I've Worked On

iPod Touch 2nd Generation Teardown

Completed Guides

PowerBook G4 Titanium Onyx Display Replacement

PowerBook G4 Titanium Onyx Airport Card Replacement

PowerBook G4 Titanium Onyx Inverter Board Replacement

iPod 5th Generation (Video) Hard Drive Replacement

iPod 5th Generation (Video) Logic Board Replacement

Motorola Razr V3c Motherboard (CDMA) Replacement

Disassembling Sony Ericsson T68i

PSP 300x LCD Screen Replacement

iPod Touch 1st Generation Battery Replacement

iPod Touch 1st Generation Logic Board Replacement

Page 1 of 2

Dead Mac mini with no obvious damage 07/31/2010
i received a mac mini with no signs of life. there is no visual damage on the logicboard. i removed the logic board and...
White Screen of Death and Graphics Problems - Solution 05/05/2010
i've received a iPod Nano 1g today. the device had a huge problem - the screen was distorted when i switched to another...
click wheel problems - reset works 05/05/2010
I know this is almost a common problem the click wheel accept the reset combination - but freezes after that. it also...
MacBook won't wake up from Hibernation 04/23/2010
I have a MacBook that won't wake up from hibernation mode. i wanted to drain the battery and let the MacBook go all the...
PowerBook Al 1GHz - 4 Beeps at Startup 04/10/2010
received today a AL Book seller said that it beeps 3 times, but unfortunately - it beeps 4 times (light flashes 5 times) -...
MacBook 1,1 won't wake up when Lid is opened 03/30/2010
today i changed the complete lid from a MacBook and now the MacBook won't wake up when the lid is opened - sleeping is no...
iBook G4 Display totally Blank 03/26/2010
I have a iBook g4 with a "tiny" problem. the screen doesn't show anything - the backlight is off and if i use a flashlight...
White Intel iMac won't Start if the LCD is Connected? 03/19/2010
hi everybody, a friend of mine gave me an intel iMac with a strange issue - the iMac wont start if the lcd is connected -...
iMac G5: any chance to get this part? 03/07/2010
i'm searching the part marked in the picture. is there any chance to find a new one ? the old one is dead - it gets hot...
one with Backlight Problems and a Dead one 02/28/2010
hi, i have 2 MacBooks here. one has a backlight problem - if i set the backlight to 100% - it switches off. the inverter...

Answers

Answer to "How can I repair the YLOD problem ( yellow light of death )" 12/21/2011
jejejoey - almost correct! they switched to lead-free - thats right (to anybody who cares ->google "RoHS" for more information about that topic). the melting temperature is exactly the other way. leaded solder melts earlier then lead-free solder. the lead-free solder is "harder" - and that's why it breaks. you can read more about it on wikipedia -> http://en.wikipedia.org/wiki/Restriction...
Answer to "Laptop LCD broken, half upper left area black" 03/21/2012
you have to replace the lcd - it should not be that expensive ;-)
Answer to "MacBook Pro 15 A1150 graphic chip bug/dead" 03/21/2012
this porblem can be fixed, but not that easy. there are many companies that offer the gpu repair for the mackbook pro - the price in germany is around 149€ maybe you should search ebay or something like that
Answer to "Is the iPod Touch's (1st Gen) Display compatible to iPhone 2G?" 12/28/2011
that won't work - the parts are not interchangeable
Answer to "Exchange the Ethernet card" 12/28/2011
the ethernet card is only a chip on the mainboard - it's not possible to replace it with a plug and play solution Guide Step 14 in particular
Answer to "Spilled wine back in '09. Lots of repairs needed. Worth it?" 12/26/2011
i corrected the category for the mbp i think that it might not be that expensive here are the ifixit prices... aiport card 79,95 battery 109,95 keyboard 99,95 superdrive 149,95 but i'm pretty sure that you have many other options for those parts ebay.com airport card around 11 battery 26 (but this might be a pretty crappy battery) keyboard 30 suerdrive 40 those are all "buy it now" prices - auction prices can be lower.....
Answer to "Found two schematics for MacBook, trying to figure out correct one" 12/26/2011
buying something stolen?? no, that should not be an option: read this and this and snoop a little bit around ;-)
Answer to "part divice effect Soldering" 12/26/2011
nothing to solder there - it's an emi shield - the phone would even work without that shield (but that would not the best idea)
Answer to "Headphone jack doesn't work and volume buttons dont function?" 12/26/2011
open the phone and check the connector from the headphone jack assembly - sometimes it's not properly seated. but it could be damaged too i would check the resistors near the connector on the logicboard - had a few phones with broken resistors! (would that check before you order a new assembly) replacing the plastic case is easy if you already stripped almost everything - but as i mentioned earlier - try to get it fixed first and then order parts - they are too expensive - especially when the rest wont work....
Answer to "Touchscreen wont respond when I try to unlock phone...?" 12/26/2011
hi matt, i would use the motherboard guide (click) and check all the connections inside the phone - most likely is a connection poped out of the socket - but it's also possible that the soldering of a chip got damaged - but as i said - check the connections first - good luck

Page 1 of 132

iPhone 4S Teardown 10/13/2011

no, it won't fit - they are different

Reputation over time

Reputation Breakdown

Event	Count	Delta
Post was voted up	1629	19548
Answer accepted	632	16334
Accepted answer	7	70
Flagged post deleted	8	56
Flagged comment deleted	2	14
Voted down a post	2	-4
Flagged post as inappropriate	8	-16
Post was voted down	6	-36