Filter Replacement » History » Version 11
Anonymous, 02/19/2016 10:48 PM
We don't sell the kits anymore
| 1 | 1 | == Motorola filter replacement == |
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| 2 | |||
| 3 | 10 | nion | In order to use the phone as a passive uplink sniffer, you will have to remove and replace the RX filters. |
| 4 | 9 | nion | |
| 5 | 1 | To replace filters on Motorola phones you will need: |
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| 6 | |||
| 7 | * [http://search.digikey.com/scripts/DkSearch/dksus.dll?vendor=0&keywords=HHM1526 HHM1526] |
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| 8 | * [http://search.digikey.com/scripts/DkSearch/dksus.dll?vendor=0&keywords=HHM1523C1 HHM1523C1] |
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| 9 | * [http://search.digikey.com/scripts/DkSearch/dksus.dll?vendor=0&keywords=04025A150JAT2A 04025A150JAT2A] |
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| 10 | * [http://search.digikey.com/scripts/DkSearch/dksus.dll?vendor=0&keywords=04025A220JAT2A 04025A220JAT2A] |
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| 11 | |||
| 12 | 5 | laforge | |
| 13 | 2 | === Remove existing baluns === |
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| 14 | |||
| 15 | First you will need to remove existing balun: |
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| 16 | |||
| 17 | [[Image(motorola_filter_replacement_step_1_low.jpg, 250px)]] |
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| 18 | [[Image(motorola_filter_replacement_step_2_low.jpg, 250px)]] |
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| 19 | |||
| 20 | === Solder new baluns === |
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| 21 | |||
| 22 | Clean up the phone and solder HHM1526 and HHM1523C1 on the right places (the black dot goes up): |
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| 23 | |||
| 24 | [[Image(motorola_filter_replacement_step_3_low.jpg, 250px)]] |
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| 25 | [[Image(motorola_filter_replacement_step_4_low.jpg, 250px)]] |
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| 26 | [[Image(motorola_filter_replacement_step_5_low.jpg, 250px)]] |
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| 27 | |||
| 28 | 3 | === Solder ceramic capacitors === |
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| 29 | 2 | ||
| 30 | 4 | Last step is to solder ceramic capacitors 04025A150JAT2A and 04025A220JAT2A: |
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| 31 | 2 | ||
| 32 | [[Image(motorola_filter_replacement_step_6_low.jpg, 250px)]] |
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| 33 | [[Image(motorola_filter_replacement_step_7_low.jpg, 250px)]] |
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| 34 | |||
| 35 | === Credits === |
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| 36 | |||
| 37 | 8 | stuge | Thanks to [http://246tnt.com/gsm/rx_filter.html Sylvain] and Peter who made this possible. |
