Please Note: We try to provide every kind of tips and secrets related to various Motorola Mobile Models. All these Secrets are taken from trusted sources and we have also tested many of them but still we can’t guarantee if they will work properly for you. Feel free to take these tips and try on your own risk. We won’t be held responsible for any damages caused to your mobile phone. Hopefully nothing such will happen

Motorola 8200 Secrets:

Activate RBS:

(Note: pause means the * key held in until box appears)

To activate RBS type: [pause] [pause] [pause] 1 1 3 [pause] 1 [pause] [ok]

You now have to press the [MENU] and scroll to the ‘Eng Field Options’ function with the keys, and enable it.

De-activate RBS:

To de-activate RBS type: [pause] [pause] [pause] 1 1 3 [pause] 0 [pause] [ok]

This only works with some versions of software.

These countries has been reported working:

i. ES, ii. AU, iii. NL, iv. BE

What’s the use of RBS:

Get Distance From Base Station – Place a call, when it is answered, press [MENU] until ‘Eng Field Option’ is displayed, press [OK], select ‘Active Cell’, press [OK], press [MENU] until ‘Time Adv xxx’ appears, where xxx is a number. Multiply this number by 550, and the result is the distance from the RBS (Radio Base Station), in meters.

Get Signal Quality – press [MENU] until ‘Eng Field Option’ is displayed, press [OK], select ‘Active Cell’, press [OK], press [MENU] until ‘C1′ appears. This is the signal quality. If it becomes negative for longer than 5 seconds, a new cell is selected.

Pin Outs:

B Numbered right to left, keypad up, battery down looking

1. Audio Ground

2. V+

3. True data (TD) (input)

4. Downlink – Complimentary data (CD) (input)

5. Uplink – Return data (RD) (output)

6. GND

7. Audio Out – on/off

8. Audio In

9. Manual Test – ???

10. Battery Feedback

11. Antenna connector

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Motorola 8400 Secrets:

Activate RBS:

(Note: pause means the * key held in until box appears)

To activate RBS type: [pause] [pause] [pause] 1 1 3 [pause] 1 [pause] [ok]

You now have to press the [MENU] and scroll to the ‘Eng Field Options’ function with the keys, and enable it.

De-activate RBS:

To de-activate RBS type: [pause] [pause] [pause] 1 1 3 [pause] 0 [pause] [ok]

This only works with some versions of software.

These countries has been reported working:

i. IT, ii. NL

What’s the use of RBS:,br> Get Distance From Base Station – Place a call, when it is answered, press [MENU] until ‘Eng Field Option’ is displayed, press [OK], select ‘Active Cell’, press [OK], press [MENU] until ‘Time Adv xxx’ appears, where xxx is a number. Multiply this number by 550, and the result is the distance from the RBS (Radio Base Station), in meters.

Get Signal Quality – press [MENU] until ‘Eng Field Option’ is displayed, press [OK], select ‘Active Cell’, press [OK], press [MENU] until ‘C1′ appears. This is the signal quality. If it becomes negative for longer than 5 seconds, a new cell is selected.

Pin Outs:

Numbered left to right, keypad up, battery down

1. Audio Ground

2. V+

3. True data (TD) (input)

4. Downlink – Complimentary data (CD) (input)

5. Uplink – Return data (RD) (output)

6. GND

7. Audio Out – on/off

8. Audio In

9. Manual Test – ???

10. Battery Feedback

11. Antenna connector