# 📑 Update Notes (English Translation)

### ⚠️ Very Important
After this update, you **must use the new CPS** to re‑edit and write frequencies into the radio.  
Previous saved files are **not compatible** and cannot be used.

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### 1. Unicode Download
- After the firmware update, you must use this tool to load Unicode encoding.  
- Otherwise, SMS text messages may display garbled characters.

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### 2. DMR Upgrade V1.2.0.24 (Build 251010)
1. Increased VBLC super‑frame detection time to fix relay reception disconnect issues.  
2. Fixed the problem where the radio could not enter sleep mode.

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### 3. Radio Firmware

#### V3.18 (Build 251111)
1. Added automatic recovery for abnormal data; adjusted storage locations to prevent data loss from frequent changes.  
2. Expanded basic contacts to **10,000 entries**.  
3. TG List expanded to **250 groups**, each supporting up to 32 group call contacts.  
4. Region list expanded to **250 regions**, each with 250 channels. A/B channels can have independent current channel settings per region.  
5. SMS draft, inbox, and outbox each support **128 messages**.  
6. FM radio now supports **80 independent channels** (no longer divided by region). Press `*` to switch input mode; when on channel name, press `Menu` to edit.  
7. Spectrum function updated:  
   - Step input range: 0–9.99999 MHz  
   - Scan points increased from 81 → 105  
   - Left indicators: RSSI, Noise, Glitch  
8. APO and FM Standby menus moved under **Basic Set**; FM Radio and Time Manage menus removed.  
9. DMR Version, Flash IC, and battery voltage display moved under **Version menu** (scroll with up/down keys).  
10. Refined frequency step options (added 8.33 kHz).  
11. Adjusted contrast settings to prevent unreadable display.  
12. Improved dual‑watch handling: after digital signal ends, radio waits 2s before resuming dual‑watch.  
13. Scan speed reverted to earlier slower version (fast scanning caused missed signals). Adjusted CO mode carrier loss wait time (Scan Interval menu).  
14. Optimized communication between DMR baseband and MCU.  
15. Removed color code scan function.  
16. Digital and analog channel settings unified under **Channel Set menu**; can switch between digital/analog modes.  
17. Offset Freq and Offset Dir merged into one menu; use keypad to toggle +/–. Linked with TX Freq menu.  
18. Single Tone transmission now has a timer; stops automatically when time expires.  
19. Fixed crash when transmitting during reception.  
20. Fixed long‑term dual‑watch (digital/analog) reception issues.

#### V3.19 (Build 251113)
1. Fixed TG List not working.  
2. Fixed backup debug data not being called when primary debug data failed.

#### V3.20 (Build 251119)
1. Fixed initialization failure when debug data was abnormal.  
2. Fixed SMS draft saving errors.  
3. Group call contacts now default to receiving group calls.  
4. Fixed color code detection failure in promiscuous mode.  
5. Fixed key definition initialization errors.  
6. Fixed analog VOX not restricted when channel TX limit applied.  
7. Removed audio shutdown during 4819 initialization (to prevent unintended signal transmission).  
8. Fixed CTC/DCS setting issues.  
9. Fixed inability to change CTC/DCS in digital channels.

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### 4. CPS (Customer Programming Software)

#### V2.01 (Build 251111)
⚠️ **Not compatible with all previous versions. Must re‑edit and re‑write frequencies.**

1. Read/write baud rate selectable: **115200 (default)** or **256000**.  
   - If using 256000, hold `#` while powering on the radio.  
   - Some cables do not support 256000; revert to 115200 if needed.  
2. UI layout adjustments.  
3. VFO channel moved to front. Digital and analog channels merged.  
   - Added right‑click menu (Copy/Cut/Paste/Insert/Delete).  
   - Added search by frequency or name.  
   - Added sorting by frequency/mode/name.  
4. Work regions expanded to **250 regions**, each with 250 channels.  
   - Channels can be moved up/down and sorted by number/name.  
   - Each region supports two current channels (A and B).  
5. Contacts expanded to **10,000 entries**.  
   - Added sorting by type/ID/name.  
6. TG List expanded to **250 lists**, each with 32 group call contacts.  
7. FM radio list expanded to **80 channels**, independent (no regions).

#### V2.02 (Build 251113)
1. Fixed TG List IDs not updating when contact IDs changed.

#### V2.03–V2.04 (Build 251119)
1. Added search by name/ID in contact list.  
2. Added “Append CSV file” button.  
3. Added save confirmation popup when exiting.  
4. Fixed preset SMS not being written correctly.
