numer IMEI: * # 0 6#
włączenie Monitora Sieci: * * * 1 1 3 * 1 * [OK]
włączenie Monitora Sieci: * * * 1 1 3 * 1 * [OK]
* trzymaj tak dlugo aż pokaże się kwadrat

T205/T19x
*#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# EFR OFF
*#72837726# OK Confirm ?, Data saved
1234 OK Phone code default
*#0000# OK Settings saved, restore set phone to default language.
*#0048# OK Zmiana na język polski nawet jezeli w menu go nie ma (nie wszystkie ver 19x)
*#0007# OK Zmiana na język rosyjski nawet jezeli w menu go nie ma (nie wszystkie ver 19x)