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-
- HACKING THE FOVC
-
- This hack assumes you can:
- 1. put your MOTOROLA phone into test mode
- 2. unmute audio
- 3. load channel numbers until you find something worth listening to.
-
- Problem: When listening to something interesting (a conversation),
- just when that sexy sounding horny broad begins to give her
- phone number to some lucky guy, HANDOFF!!! then static... DAMN!
-
- Trick: Hack the FOVC.
-
- a quick definition: FOVC = FOward Voice Channel
- FOCC = FOward Control Channel
- REVC = REverse Voice Channel
- RECC = REverse Control Channel
-
- As the phone travels through cells, the FOVC is where the tower tells
- the phone to adjust power levels for the current cell or to change to
- a new channel for use in the new cell. This info can be hacked apart.
- So. When you've found a good conversation, don't be lazy! Enter 40#!
- This makes the phone listen for commands on the voice channel
- (embedded in the audio portion- you can hear it as a "bump" sound). It
- will just sit there and the display will read '40' , but the
- conversation will still be audible. Now when the phone receives a
- FOVC command (a 40 bit sequence) data will flow across the display, in
- hex format, and stop. Listen to the phone, if the conversation is
- still there, then the command was only to adjust power levels. If the
- conversation is gone, then its a handoff. If you only got a power
- adjustment command just press # or clr, which ever gets you back to
- the ' prompt. Enter 40# and keep listening. You can also use the # key
- to cancel the 40# command, if you want to change channels or something.
-
-
- If it was a handoff, its time for some quick math. You have to convert
- some of the numbers to binary, and then to decimal. I don't know how
- many characters your phone's display will show. Mine only shows the
- last seven of the ten hex digits. Count left from the end 6 digits.
- Write down that digit and the next two on a piece of paper, ie:
-
-
- ???j16djjj j=junk numbers (hex numbers range from 0-9,a-f)
- / \
- these are lost due to scrolling
-
- write down 16d then convert it to a binary string:
-
- 1 = 0001
- 6 = 0110
- d = 1101 (d=13)
-
- now you have a binary string like this: 000101101101
- throw away the first 2 bits and get: 0101101101
- convert this to decimal and get: 365
-
-
- 365 is the new channel the conversation has moved to! Enter 110365#
- and voila! You too, can hear the horny babe's phone number!
-
- Don't forget to enter 40# again, as the call may be moving quickly
- through cells ( small cells or freeway driving ) or the call can get
- bounced around by the tower for cell traffic purposes.
-
- Here's one more example of the hex>binary>decimal conversion.
-
- ???j5aejjj
-
- 5 = 0101
- a = 1010
- e = 1110
-
- full string = 010110101110
- truncate 2 msb = 0110101110
- convert to decimal = 430
-
-
- That's all for today! Anybody having similar hacks, please post!
-
- Also, if anyone can help with the following questions, THANK YOU!!!
-
- 1. What are the pinouts and specs on the MOTOROLA FLIP phone data
- jack?
-
- 2. I know that three of the pins are a "proprietary" data bus. This
- comes from a tech at motorola. HOW DOES THIS BUS WORK???
-
- 3. When loading channels into the synthesizer with 11xxxx#, the
- phone goes to a preset frequency for receiving and a different
- frequency (45 khz lower?) for transmitting. Can the frequency
- table be shifted to allow a phone in test mode to RECEIVE the
- REVERSE channels instead of only the foward channels???
-
-
- ********* attn FLAMERS: MAKE HACK, NOT FLAME.... ***********
-
- ********** Life is short, HACK HARD! ********
-
- ****** JUST HACK IT ******
-