LiveModding - Modding Your Life

Reference Engineering Menu Explained

 

From Guides

FEM list:

Cell Management

-Cell Sticker

--Target ARFCN: off/on

-Cell Change Warning

--Message: off/on

--Tone: off/on-CBA: Normal/Inverted/Ignored

Net.Messaging

-Paging: Normal/Ignored-L3 Messages Filter

--[New Entry]

Field Test Status

-Availability: FTS/off/SBCM/Other

-Cell Change Warning

--Message: off/on

--Tone: off/on

-Edit Favorites

-Edit Visibles

-Debug Info: off/on

Information Viewers

-Panics

--4)00010a00 08.17

--3)00010e00 08.17

--2)00010a00 08.17

--1)00010a00 08.17

Phone Capabilities

-MS Op. Mode: B/C GSM/C GPRS

-Gp Auto Attach: off/on

-DSM: Allowed/Core Wait Allowed/Forbidden

Data Calls

-Level 1

-Level 2

-Level 3

-Level 4

-Cell Managment

-Cell Sticker

- This makes the phone stick to its current cell until no signal is available from the specified cell. If you attempt to make a call, then cell sticker is turned off until you end the call.

Target ARFCN - ARFCN (Absolute Radio Frequency Channel Number) is the channel you want on a particular cell.

Cell Change Warning

- Notifies you when you change from cell to cell (i.e. tower to tower or transmitter to transmitter). Usually changing from the 850 transmitter on Cingular to the 1900 transmitter on AT&T will give you a cell change bleep as well.

>>Message

- Displays a message on the screen when the cell has changed.

>>Tone

- Does the alert beep when the cell changes.

CBA (Cell Bar Access)

- this changes the access list for cells so that you can't access certain ones (basically roaming partners or bad cells). You can leave the list as programmed or invert the list (changes list so normal cells are blocked and blocked are only ones available) and ignored just lets you hop on any cell you want. I've yet to see if the SIM card overrides this.

-Net. Messaging

Paging

 

- Messages are sent to a phone when a channel becomes full or a cell becomes loaded telling the phone to switch to another channel or tower. If ignored you will stay on the same channel and tower because the phone doesn't know any better.

L3 Messages Filter

- When an L3 Message is sent from the tower, if it is not exactly 16 bits in length, the phone should be set to filter it out. If allowed to pass the channel info could be corrupted. To understand this one you must first understand GSM. Basically, there are 3 layers: L1, L2, and L3.

>>>Layer 1

- This is the physical layer. Basically it transmits all the information.

>>>Layer 2

- This is the link layer. Basically it conditions the signal, i.e. error checking, channel monitoring, and handoffs.

>>>Layer 3

- This is the network layer which establishes, maintains, and terminates the channel.

Field Test Status

-Availability

- Turns access to the field test system on or off. There are three test modes:

FTS is Field Test System (or Status) which will show you various information about your network connection (i.e. adjacent cells, neighbors, reselection info, your signal strength in dBm (a lower negative number is better,-89 is better signal than-101 for example) and other information). SBCM tells you information about your battery (voltage, temperature, charger information) and phone runtime information (i.e. connected devices). Other just displays "1234567890" and is useless, as far as I know.

You can cycle through different screens and menus by using the directional pad. Pressing the left softkey in FTS mode will add the screen to favorites. Pressing the right softkey in FTS mode will add an "F" (or maybe it's a "P" cut off) at the end of the title (I have no clue what it stands for or does).

To enter or exit Field Test System or SBCM info modes, press the upper center softkey + left softkey at the same time, like a shortcut. The phone will also enter FTS mode when you power cycle the phone. If you set SBCM on and power cycle the phone, the phone will still enter FTS mode and not SBCM.

-Cell Change Warning

- same as above, notification of cell changes through message or alert tone.

Edit Favorites

- You can store favorite screens while in the FTS screen. You can add or delete them under this option. I don't know what the use of Favorites is.

Edit Visibles

- This lets you edit which screens and what information is visible in the FTS screen.

Debug Info

- This will show some debug info. I don't know what it specifically controls or where it shows any extra information.

Information Viewers

-Panics

- Usually when time your phone locks up or crashes, a crash dump with panic information is stored. It logs some diagnostic data and crash dumps for Motorola technicians to diagnose.

quote:

--4)00010a00 08.17

--3)00010e00 08.17

--2)00010a00 08.17

--1)00010a00 08.17

This tells you that your phone crashed 4 times with software version ending in 08.17.

Phone Capabilities

-MS Op. Mode: B/C GSM/C GPRS- This controls whether your phone is able to use GSM only, GPRS only, or both. C GSM(voice only), C GPRS(data only) and B for both. If you do not have a data plan and don't wish to be charged for accidental data usage, you can turn this to C GSM. MMS requires data, so if you use MMS leave this as B. Your phone may also use GPRS for SMS; you can usually change this setting under Message Setup -> Text Msg Setup -> Use GPRS: Yes/No (you might need to do a seem edit for this option to display). Change this setting to "No" if you plan on changing the Op. Mode to C GSM.

-Gp Auto Attach: off/on - This controls auto attachment of GPRS. If turned off the phone will manually initiate the GPRS connection with the towers. If not, the phone automatically initiates the connection when registering with the cell. If you don't have a data plan or rarely use data then turning this off may save battery life as the phone does not have to continuously attach and maintain a GPRS/EDGE connection unless you're using data.-DSM: Allowed/Core Wait Allowed/Forbidden

-DSM stands for Deep Sleep Mode. Allowed allows it, Core Wait Allowed only allows the processor to halt, and Forbidden forbids DSM in any form. Basically, when your phone goes into DSM, all that's powered is the radio transmitter listening for signal. If a call is received, the radio transmitter powers the phone back up and the phone rings. This also coincidentally is the feature that people with the V551 white screen problem should turn to "Forbidden" to fix it. They would get lower battery life, but it should work. No guarantees there.

Data Calls-

Lvl 1-4 - Not sure about this one, my guess would be the timeslots used by the GPRS section 1-4? This doesn't appear on my SLVR L7, but it does appear on a friend's RAZR V3r. Pressing any of the Lvl 1-4 didn't do anything.

Tiếp theo >