TK 3100, No communication, codes check out OK

Do you indeed!

No problem, it is $76.00.

Kenwood TK-8160K ' Software - American Communication ...

https://www.ameradio.com > Kenwood > Software
Reliable Accessories for KENWOOD TK-8160 UHF Conventional Mobile Radio, 450-490 MHz, 25W, 128 Channels, ... Windows® Programming Software for KDS-100.

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  Kenwood TK-7160HK ' Software - American Communication ...

  https://www.ameradio.com > Kenwood > Software
  Windows® Programming Software for KDS-100. Compatible with KENWOOD TK-7180, TK-8180, TK-7160, TK-8160, TK-7150, TK-8150, TK-980, TK-981, TK-7102H, TK-8102H, ...
  
  ..

Change the EEPROM or contact Kenwood Customer Care, they will send you software by which you can read/write the Radio.

Re program radio but you cant do a backup I don't think Re: Jeff

https://hamfiles.co.uk/index.php?page=downloads&type=entry&id=radio-programming%2Fkenwood-programming%2Fkenwood-kpg-137d-v2-20 Download from above link.

Change the EEPROM of a working same model Radio or put this EEPROM in any other Radio and see the result, if result is same then change EEPROM.

Software TK-2212 is KPG-100 and normal kenwood cable KPG-22 can be used for programming.

To change the channel frequencies on your TK2100, simply press and hold the PTT switch ("talk button") and Monitor key, then turn the power on. Now press the PTT switch again. The light should change from orange to red and a beep should sound. Next, adjust the channel switch to the channel you wish to program. Now simply press the PTT button to choose between 4 to 8 possible frequencies, depending on your model.
You can find the manual and frequency graphs here: http://www.heritageresale.com/documents/TK2100OwnersManual.pdf

First you connect your radio with pc and try to read your radio, if it read then you rewrite it, if you sucessful, it ok, other wise your radio have a hard ware problem because cpu not communicate the eeprom and ram.

are the batterys charged?
Are the battery contacts cleaned

Hi Tucaraca.

With the radio OFF, switch to CHANNEL 1, press the SQUELCH and the PTT at the same time. Turn ON the power switch while keeping the PTT and SQUELCH until the LED indicator turns RED.

Release the buttons and then press the PTT to CHANGE the FREQUENCY.

Press the PTT once each time until you get to the right frequency you desire. The 8 standard frequencies are as follows: 464.500, 464.5500, 467.7625, 467.8125, 467.8500, 467.8750,467.9000 and 467.9250 MHz. Once you get to the frequency you use, wait a few seconds and listen for the confirmation tone. Each frequency has a different confirmation tone so take note in case you need to program a second radio.

After you hear the confirmation tone, press the SQUELCH to confirm, and then press the SQUELCH again to lock the new frequency. Wait until the LED turns off, then switch off your radio.

Same procedure for CHANNEL 2.

WARNING: You must be legally licensed to use any frequency on any PLMRS such as the TK-3100 series. You must also apply for FREQUENCY COORDINATION and submit FCC form 601. FCC can impose steep fines and imprisonment if they catch anyone using an unlicensed radio on a controlled frequency. Visit FCC.GOV for more information.