All Motorola Secret Code

Motorola L6:
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hold * 65512890 for reset
hold * 5806 sw version
hold * 487989 NS lock menu
hold * 482896 CP
hold * 574243 NS
hold * 967678 SP
hold * 362628 IMSI
hold * 787090 Lock net level
hold * 787292 Lock net level

Reset L7 security code without any cable
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press menu button enter 6 time 0 and then press ok

*#06# IMEI
in permament test mode
(* hold 2 sec)
***113*1*[OK] net monitor
T205/T19x (ACER)
*#300# OK List the Software and Hardware version
*#301# OK Full Keypads functional Test
*#303# OK Set Default Language to English
*#304# OK Set OFF engineering mode
#304*19980722# OK Set ON engineering mode
*#305# OK Location: 1 OK
*#307# OK Engineering Test Mode
*#311# OK Phone code changed to default code
*#400# OK ADC, Cal val*
*#402# OK Adjust Display Intensity / Contrast
*#403# OK List the Manufacturing Informations
19980722 OK Master Unlock code for Phone and Sim Lock
*#302# OK Acoustic test*
7.1 Greeting
7.2 Main VlmGain
7.3 Input Cal
7.4 Output Cal
7.5 Side In Gain
7.6 Vox Gain
7.7 Min Mic Engy
7.8 More
(a) In Vlm Gain
(b) Aux Vlm Gain
(c) Silence Prd
(d) Supp Prd
(e) In Volume
(f) Out Volume
(g) Icon
(h) Image
(i) Animation
*3370# EFR ON (enhanced full rate)
#3370# ERF OFF
*#72837726# OK Confirm ?, Data saver
1234 OK Phone code default
*#0000# OK Setting saved, restore set phone do default language
*#0048# OK Fast change polish langpack
*#0007# OK Fast change russian langpack

MOTOROLA 3xx
*#06# and quick 'menu-key' and 048263* (Push the key quickly!)
and entering at field "OPTCODE" you must try several times.
If not working try with MOTO TEST CARD inserted.
Security code - 32*118*1*0*0
Model - 32*279*1*0*8
Flex ver - 32*383*1*0*0
Master Reset - 18*0
Master Clear - 18*1
Set band GSM 900 - 10*0*3
Set band DCS 1800 - 10*0*4
Set band PCS 1900 - 10*0*5
Set dual band GSM 900/1800 - 10*0*6
Read band - 10*1*0 => 3-GSM, 4-DCS, 5-PCS, 6-GSM/DCS
User code - 32*116*1*0*0 /coded:00310032003300340000 - 1234/
Read imei - 32*4*1*0*0 "OK" /coded:083a05092700247709 - 350907200427799/
47*4*1*0*9*081A32547698103254 => IMEI=123456789012345
it is possible to change IMEI