TSOP Soldering Issue - Techwatch Support Forums: Digital & Satellite TV, FTA, Cable, Computers, Mobile Phones, Apple and General Tech Forums

BL4K3Y · 01-04-10, 01:00 PM

Right, I removed the TSOP from an Ambit 250 and re-programmed it with a known working 2MB dump. I have now put the chip back onto the board, I cleaned the pads before hand, soldered the chip down and then re-flowed it, I have re-flowed about 4 times so far and it still won't come back to life. Can anybody tell me where I may be going wrong? Oh and every pin is aligned correctly because I did it using a strong magnifying glass.

SlackR84 · 01-04-10, 02:16 PM

what dump did you use? a .bin?

dumps taken via programmer vs via jtag/haxorware gui or max232 are different.

in your (willem i assume?) app, you load then bin the look for "byte swap" hit that then program.

BL4K3Y · 01-04-10, 02:18 PM

I used a 2MB .bin mate. Yes, I used a Willem 4.5 programmer following a tutorial I found in downloads (the file is called Ambit 250-255 Unbricking Tutorial & Files or something like that).

SlackR84 · 01-04-10, 02:20 PM

byte swap and it should work as long as your soldering is ok.

BL4K3Y · 01-04-10, 02:34 PM

I am pretty confident that my soldering is okay but I couldn't possibly be 100% certain.

SlackR84 · 01-04-10, 02:35 PM

did you do a byte swap before programming? unfortunately tsops are extremely hard to see if the soldering is correct.

if you did swap byte and its not working, i could upload a known working, pre swapped file.

best to pm me on sbhacker tho as i rarely check this site anymore after the trouble last year.

BL4K3Y · 01-04-10, 02:38 PM

What is "byte swapping"?

SlackR84 · 01-04-10, 02:40 PM

its an option in the willem application

BL4K3Y · 01-04-10, 03:04 PM

Ok, thanks for that. I will have a play around sometime over the weekend.

01-04-10, 01:00 PM	#1 (permalink)
BL4K3Y Senior Member Join Date: Apr 2008 Location: Colne, Lancashire Posts: 7,004 Thanks: 247 Thanked 1,319 Times in 1,211 Posts	TSOP Soldering Issue Right, I removed the TSOP from an Ambit 250 and re-programmed it with a known working 2MB dump. I have now put the chip back onto the board, I cleaned the pads before hand, soldered the chip down and then re-flowed it, I have re-flowed about 4 times so far and it still won't come back to life. Can anybody tell me where I may be going wrong? Oh and every pin is aligned correctly because I did it using a strong magnifying glass.

01-04-10, 02:16 PM	#2 (permalink)
SlackR84 Junior Member Join Date: Nov 2009 Posts: 14 Thanks: 1 Thanked 2 Times in 2 Posts	Re: TSOP Soldering Issue what dump did you use? a .bin? dumps taken via programmer vs via jtag/haxorware gui or max232 are different. in your (willem i assume?) app, you load then bin the look for "byte swap" hit that then program. Last edited by SlackR84; 01-04-10 at 02:19 PM.

01-04-10, 02:18 PM	#3 (permalink)
BL4K3Y Senior Member Join Date: Apr 2008 Location: Colne, Lancashire Posts: 7,004 Thanks: 247 Thanked 1,319 Times in 1,211 Posts	Re: TSOP Soldering Issue I used a 2MB .bin mate. Yes, I used a Willem 4.5 programmer following a tutorial I found in downloads (the file is called Ambit 250-255 Unbricking Tutorial & Files or something like that).

01-04-10, 02:20 PM	#4 (permalink)
SlackR84 Junior Member Join Date: Nov 2009 Posts: 14 Thanks: 1 Thanked 2 Times in 2 Posts	Re: TSOP Soldering Issue byte swap and it should work as long as your soldering is ok.

01-04-10, 02:34 PM	#5 (permalink)
BL4K3Y Senior Member Join Date: Apr 2008 Location: Colne, Lancashire Posts: 7,004 Thanks: 247 Thanked 1,319 Times in 1,211 Posts	Re: TSOP Soldering Issue I am pretty confident that my soldering is okay but I couldn't possibly be 100% certain.

01-04-10, 02:35 PM	#6 (permalink)
SlackR84 Junior Member Join Date: Nov 2009 Posts: 14 Thanks: 1 Thanked 2 Times in 2 Posts	Re: TSOP Soldering Issue did you do a byte swap before programming? unfortunately tsops are extremely hard to see if the soldering is correct. if you did swap byte and its not working, i could upload a known working, pre swapped file. best to pm me on sbhacker tho as i rarely check this site anymore after the trouble last year.

01-04-10, 02:38 PM	#7 (permalink)
BL4K3Y Senior Member Join Date: Apr 2008 Location: Colne, Lancashire Posts: 7,004 Thanks: 247 Thanked 1,319 Times in 1,211 Posts	Re: TSOP Soldering Issue What is "byte swapping"?

01-04-10, 02:40 PM	#8 (permalink)
SlackR84 Junior Member Join Date: Nov 2009 Posts: 14 Thanks: 1 Thanked 2 Times in 2 Posts	Re: TSOP Soldering Issue its an option in the willem application

01-04-10, 03:04 PM	#9 (permalink)
BL4K3Y Senior Member Join Date: Apr 2008 Location: Colne, Lancashire Posts: 7,004 Thanks: 247 Thanked 1,319 Times in 1,211 Posts	Re: TSOP Soldering Issue Ok, thanks for that. I will have a play around sometime over the weekend.

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