Decoding-Communication-Tech-Data-Device-Models-Diagnostic-Passwords-and-Engineering-Codes

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Decoding-Communication-Tech-Data-Device-Models-Diagnostic-Passwords-and-Engineering-Codes

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# 📡 Decoding Communication Tech Data: Device Models, Diagnostic Passwords & Engineering Codes

This repository is a comprehensive reference for mobile communication diagnostics. It includes:

- 📱 Device model codes with production/support timeframes  
- 🔐 Diagnostic passwords (Diag PWDs) by network operator  
- 🧪 Android engineering codes (USSD/MMI codes)  
- 🏭 Brand-specific service codes (Samsung, Huawei, Xiaomi, etc.)

---

## 1. 📱 Device Model Codes & Timeframes

| Model        | Start Date | End Date   |
|--------------|------------|------------|
| SM-S978L     | 20150508   | 20150711   |
| SM-S920L     | 20150315   | 20150615   |
| SCH-R970X    | 20121126   | 20131202   |
| SM-G900R4    | 20130513   | 20130909   |
| SM-G900R     | 20130328   | 20130817   |
| SM-N910R4    | 20140516   | 20140901   |
| S120VL       | 20130327   | 20130823   |
| SCH-I535     | 20120601   | 20130815   |
| SPH-L720     | 20130501   | 20140801   |
| SM-G930P     | 20160301   | 20170801   |

---

## 2. 🔐 Diagnostic Passwords by Network Operator

| Operator      | Diag PWDs (Raw)                                      | Full PWD (Concatenated)                  |
|---------------|------------------------------------------------------|------------------------------------------|
| China Telecom | 5903365113726913                                     | 5903365113726913                         |
| TRACEFON      | 20090319,20090615                                     | 2009031920090615                         |
| TRACEFON      | 20141124,20150202                                     | 2014112420150202                         |
| TRACEFON      | 20150315,20150615                                     | 2015031520150615                         |
| US Cellular   | 20100316,19780721                                     | 2010031619780721                         |
| Verizon       | 20090319,20090615                                     | 2009031920090615                         |
| Sprint        | 01F2030F5F678FF9                                      | 01F2030F5F678FF9                         |
| Sprint        | 20121121,20131219                                     | 2012112120131219                         |
| Metro PCS     | 2FF811282FF9F323                                      | 2FF811282FF9F323                         |
| Cricket S3    | 20100316,19780721                                     | 2010031619780721                         |
| Gusto         | 20111011,16083112                                     | 2011101116083112                         |
| Boost Mobile  | 20111201,20130101                                     | 2011120120130101                         |
| TracFone      | 20130501,20140801                                     | 2013050120140801                         |

---

## 3. 🧪 Universal Android Engineering Codes (USSD/MMI)

These codes are entered directly into the phone dialer and are commonly supported across many Android devices. They are used for diagnostics, hardware testing, and accessing hidden menus.

| Code               | Function                                 |
|--------------------|------------------------------------------|
| `*#06#`            | Show IMEI number                         |
| `*#*#4636#*#*`     | Phone info, battery, usage stats         |
| `*#*#232338#*#*`   | Wi-Fi MAC address                        |
| `*#*#1472365#*#*`  | GPS test                                 |
| `*#*#2664#*#*`     | Touchscreen test                         |
| `*#*#0842#*#*`     | Vibration and backlight test             |
| `*#*#0289#*#*`     | Audio test                               |
| `*#*#197328640#*#*`| Service mode (Samsung)                   |
| `*#*#7780#*#*`     | Factory reset (soft reset)               |
| `*#*#1111#*#*`     | Software version (FTA)                   |
| `*#*#2222#*#*`     | Hardware version (FTA)                   |
| `*#*#1234#*#*`     | PDA software version                     |
| `*#*#526#*#*`      | WLAN test                                |
| `*#*#0283#*#*`     | Loopback packet test                     |
| `*#*#7353#*#*`     | Quick diagnostics menu                   |

> ⚠️ **Note:** Some codes may not work on all devices or may be disabled by carriers or manufacturers.

---

## 4. 🏭 Brand-Specific Engineering Codes (2025)

These codes are specific to certain manufacturers and provide access to advanced diagnostic, testing, and configuration menus. Use them with caution, as some may reset or alter system settings.

---

### 📱 Samsung

| Code         | Function                             |
|--------------|--------------------------------------|
| `*#0*#`      | General hardware test menu           |
| `*#0011#`    | Service mode (network info)          |
| `*#9090#`    | Diagnostic configuration             |
| `*#0808#`    | USB settings                         |
| `*#7284#`    | UART/USB configuration               |

---

### 📱 Huawei

| Code               | Function                          |
|--------------------|-----------------------------------|
| `*#*#2846579#*#*`  | Project menu                      |
| `*#*#2846#*#*`     | Hardware test                     |
| `*#*#14789632#*#*` | Battery and temperature info      |

---

### 📱 Xiaomi

| Code               | Function                          |
|--------------------|-----------------------------------|
| `*#*#6484#*#*`     | Hardware test menu                |
| `*#*#4636#*#*`     | Device info                       |
| `*#*#86583#*#*`    | Disable VoLTE carrier check       |

---

### 📱 OnePlus

| Code         | Function                             |
|--------------|--------------------------------------|
| `*#808#`     | Engineering test mode                |
| `*#801#`     | Engineering switch                   |
| `*#1234#`    | Software version                     |

---

### 📱 Vivo

| Code         | Function                             |
|--------------|--------------------------------------|
| `*#558#`     | Engineering mode                     |
| `*#*#7777#*#*`| Factory reset                        |
| `*#*#4838#*#*`| Phone info and usage stats           |
| `*#*#2637643#*#*` | MTK Engineering Mode (for MediaTek models) |

---

### 📱 Realme

| Code         | Function                             |
|--------------|--------------------------------------|
| `*#899#`     | Engineering mode                     |
| `*#*#4636#*#*`| Phone info, battery, usage stats     |
| `*#*#232339#*#*`| Wi-Fi test                         |
| `*#*#426#*#*` | Google Play Services diagnostics     |

---

### 🍏 Apple (iPhone)

Apple devices do not support USSD/MMI engineering codes like Android. However, the following codes are available for **carrier and diagnostic use**:

| Code         | Function                             |
|--------------|--------------------------------------|
| `*3001#12345#*` | Field Test Mode (signal strength, LTE info) |
| `*#06#`       | Show IMEI number                    |
| `*#67#`       | Call forwarding when busy           |
| `*#21#`       | Call forwarding status              |
| `*#33#`       | Call barring status                 |

> ⚠️ **Note:** Apple restricts deep diagnostic access to authorized service providers. Most advanced diagnostics require Apple Configurator or Apple Service Toolkit.

---

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