Ericsson GF768 and T18 – Complete Guide: features, common problems, and value
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The Ericsson GF768 and Ericsson T18 are two of the most beloved phones of the 90s. Released in 1998 and 1999 respectively, they represent the pinnacle of Ericsson design before the T28 era.
In this comprehensive guide, you'll find everything you need to know about the GF768 and T18: technical specifications, common problems, solutions, interesting facts, and their current value on the used market.
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## Compared Technical Specifications
| Feature | Ericsson GF768 | Ericsson T18 |
|:---|:---|:---|
| Release Year | 1998 | 1998/1999 |
| Dimensions | 105 x 49 x 23 mm | 105 x 49 x 23 mm |
| Weight | 110 grams | 110 grams |
| Battery | Ni-MH (850 mAh) | Ni-MH (850 mAh) |
| Standby Time | 72 hours | 72 hours |
| Talk Time | 3 hours | 3 hours |
| Display | Monochrome | Monochrome |
| Memory | 100 contacts | 100 contacts |
| Ringtones | Monophonic | Monophonic |
**Main differences:**
- **GF768:** Curved design, pastel colors (green, blue, gray)
- **T18:** More squared design, larger buttons, removable front cover
If you want to learn more about other iconic phones, read our guide on [Nokia 3310 – The Complete Guide](https://www.infosate.com/blogs/notizie/nokia-3310-la-guida-completa-caratteristiche-giochi-problemi-comuni-e-quanto-vale-oggi).
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## Secret Codes for Ericsson GF768 and T18
Here are the most useful codes to dial on the keypad:
| Code | Function |
|:---|:---|
| `*#06#` | Shows IMEI number |
| `*#0000#` | Shows firmware version |
| `*#8877#` | Full reset (deletes all data) |
| `*#9999#` | Shows manufacturing date |
| `*#1010#` | Display test |
| `*#1020#` | Ringtone test |
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## Common Problems and How to Solve Them
### 1. The battery doesn't hold a charge
The original Ni-MH batteries are dead after 25 years.
**Solution:** Buy a replacement battery on eBay (cost: 15-20 euros). Ni-MH batteries are still produced for these models.
If you have power-on problems with other models, read the guide on [Nokia N95 won't turn on: how to fix](https://www.infosate.com/blogs/notizie/nokia-n95-non-si-accende-come-risolvere).
### 2. The phone overheats
**Cause:** Old battery or shorted contacts.
**Solution:** Replace the battery. If it persists, there is an electrical problem.
### 3. The display has lines or is faded
**Cause:** Damaged display ribbon cable.
**Solution:** Requires repair. This is a common problem with these models.
### 4. Buttons don't respond well
**Cause:** Dirt or oxidized contacts.
**Solution:** Open the phone and clean the keypad contacts with isopropyl alcohol.
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## What are they worth today? (2025 prices)
| Condition | GF768 | T18 |
|:---|:---|:---|
| Used working (without box) | 30-50 euros | 40-70 euros |
| Used with original box | 60-90 euros | 80-120 euros |
| New in box (never opened) | 150-200 euros | 180-250 euros |
**Where to sell them for the best price:**
- **eBay** – reach international collectors
- **Subito.it** – quick sale in Italy
- **Facebook Groups** (e.g., "Telefoni vintage in Italia")
**What influences the price:**
- The original box (increases the price by 50-100%)
- Original manuals, charger, and headphones
- Working original battery
- Absence of scratches and signs of wear
For other collectible phones, find out how much a [Motorola StarTAC is worth today](https://www.infosate.com/blogs/notizie/motorola-startac-come-funziona-e-quanto-vale-oggi).
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## Interesting Facts
1. **The GF768 was available in pastel colors.** Green, blue, and gray were the most common variants.
2. **The T18 was featured in many 90s movies.** It appears in several movie and TV show scenes.
3. **Both use the same batteries.** Batteries are interchangeable between the GF768 and T18.
4. **They still have a community of enthusiasts today.** There are forums dedicated to repairing these models.
For other problems with similar models, see the guide on [how to unlock Nokia N73 without a code](https://www.infosate.com/blogs/notizie/come-sbloccare-nokia-n73-senza-codice).
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## Frequently Asked Questions
### Do they work with today's SIM cards?
Yes, but only with SIM cards that support 2G networks. In Italy, 2G networks are still active.
### How do I reset the GF768?
Dial `*#8877#` and confirm.
### Where can I find new batteries?
On eBay, search for "battery Ericsson GF768" or "battery Ericsson T18". They cost 15-20 euros.
### Which one is worth more?
The T18 is worth slightly more because it is more iconic and recognizable.
🔧 **Problems with other phones?** Here's how to [reset Samsung GT-E1150 to factory settings](https://www.infosate.com/blogs/notizie/come-resettare-samsung-gt-e1150-ai-dati-di-fabbrica).
📸 **How to transfer data from other phones?** Read the guide on [how to transfer photos from Nokia 7100 Supernova to PC](https://www.infosate.com/blogs/notizie/come-trasferire-foto-da-nokia-7100-supernova-al-pc).
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## Conclusion
The Ericsson GF768 and T18 are two pieces of telephony history. They represent the golden age of Ericsson, before it became Sony Ericsson. If you have one of these models in good condition, it can be worth up to 120 euros.
Do you have an Ericsson GF768 or T18? Tell us your story in the comments!
## 📱 Related Articles
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- [Nokia 6310i – The Complete Guide: features, problems, and value](https://www.infosate.com/blogs/notizie/nokia-6310i-guida-completa-caratteristiche-problemi-valore)