Am 01.06.2009 um 13:16 schrieb Paul Fertser: > "Dr. H. Nikolaus Schaller" <[email protected]> writes: >>> and standby time jumping up 25% looks a lot to me. >> >> If you find a way to DIY to gain these 25%, please share with us. > > In fact overall time required for hand rework is roughly equal for > both buzz and #1024 fixes. If one has already dismounted the can
The key difference is the word "if already dismounted the can". > > (quite easy if one is careful) then changing that particular capacitor > is not a problem at all for a skilled person, it's SMT0805 size, big > enough comparing to 0402 R and it's very conveniently located. > > This is for purely informational purposes for DIY-ers, i'm not > recommending any distributors to offer this rework, quite the > opposite. Thanks for this description which will help DIY-ers! Our reworker just opens the two torx screws, unclips the front cover and then does the Buzz-Rework under a microscope. Then, the front cover is clipped back and torx screws are replaced. This keeps rework cost low even in a high-wage country like Germany (which is still more than the 3 EUR we formally charge - Openmoko is sponsoring the rework). For opening the GSM shield you have to dismantle the whole PCB from the Freerunner plastics and then open the can. Doing the reverse direction means to put the power and aux buttons in place, make sure that the vibramotor and speaker give contact etc. and everything snaps back. This all sums to approx. 4 times as many minutes. That is the time that adds up in our calculation. So if we find a way to apply it without opening the can and dismantling the PCB, it will be the same speed. So it is the simplicity of the buzz-rework that made us start this adventure but more complex reworks are beyond our limits... Aother note to all who read this: the Buzz rework is only required if you have the Buzz problem. If your device does not, there is no need to rework. My personal estimate is that <5% of users have experienced it. And if you don't own a Freerunner yet, you don't necessarily have to wait for A7 devices. So purchasing an A6 is still a good bet. Nikolaus _______________________________________________ Openmoko community mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/community
