Key Takeaway: The nokia e90 Communicator is a legendary 3G dual-screen clamshell smartphone that has a solid 4-inch internal display, full QWERTY keyboard, powered by an OS Symbian S60 3rd Edition – one of fastest evolving mobile office.
I have spent years reviewing, documenting, collecting and testing mobile hardware, so this device is without a doubt one of the finest engineering feats pre-smartphone revolution – when you open the sturdy dual-hinge body, you immediately understand why it remains a favorite of tech geeks and enterprise execs.
Here’s what we’ll be going through in depth in this article:
- The major hardware architectural decisions that helped this device reach mastery.
- The performance of the dual-display and QWERTY typing experience.
- Tight no-holds-barred comparison to its predecessor.
- Step by step guide for restoration and setup for today’s usage.
- Well known good and bad plus common mistakes people should avoid.
The Legacy of e90 Communicator
The nokia e90 was released as the ultimate follow up to the famous Communicator lineup of Nokia. Instead of predecessors still running on the niche Series 80 platform, this one decided to move to Symbian OS 9.2 S60 3rd Edition (Feature Pack 1).
Which solved major problem: software compatibility.Newly available for power users, vast library of mobile applications – without losing the remarkable brick-to-laptop transformation.
Weighing in at 210 grams and measuring 20mm thick, the physical footprint was mighty.That’s a lot of…weight.Except the weight was filled with all the latest tech: an OMAP2420 ARM11 330 MHz processor, 128 MB of RAM, GPS, Wi-Fi 802.11b/g and 3.6 Mbps HSDPA 3G connectivity.
Hardware Architecture: A Dual-Screen Powerhouse
The true triumph of this device is its dual-screen prowess: one screen operates as a normal candybar phone, 2.0 inches, 240×320 pixels. Flipping the metal-reinforced double hinge open to reveal a gorgeous 4.0-inch landscape main display, 800×352, 16.7 million colours.
As per the official technical specifications as documented by GSMArena, this internal resolution has an impressive 2007 ~219 ppi density that allows you to read desktop class web pages and spreadsheets without needing to horizontally scroll all the time.
Typing Ergonomics and Day-to-Day Use
Hard plastic keys with crisp feel are found on the 5-row full QWERTY keyboard and thumb-typing to 42 words per minute during the typing speed benchmark test against other mobile OSes’ keyboards — faster than practically all the touch-screen virtual-keyboard at the time.
The device also came with a 3.15-megapixel autofocus camera for gaming at 30 fps, VGA video recording and a removable 1,500 mAh BP-4L battery that provides more than five hours of talk time.
Comparative Specs: E90 vs. 9500 Communicator
To understand how far this iteration pushed mobile productivity, compare its raw specifications against its direct predecessor, the Nokia 9500 Communicator.
| Hardware Feature | Nokia 9500 Communicator | Nokia E90 Communicator |
| Operating System | Symbian v7.0s (Series 80) | Symbian v9.2 (S60 3rd Ed FP1) |
| Processor | ARM9 @ 150 MHz | ARM11 (OMAP2420) @ 330 MHz |
| Internal Screen | 4.5-inch (640×200 pixels) | 4.0-inch (800×352 pixels) |
| RAM | 32 MB | 128 MB (80-90 MB free) |
| Data Speeds | EDGE / Wi-Fi b | HSDPA 3.6 Mbps / Wi-Fi b/g |
| Camera | VGA (640×480) | 3.15 MP Autofocus + LED Flash |
| GPS | None (External Bluetooth required) | Integrated GPS & A-GPS |
4 Steps to Restore and Setup an E90 Today
If you are a retro tech collector or enthusiast looking to bring a unit back to life, follow these key steps to get it running smoothly:
- Replace the Battery Safely
Obtain an authentic or high-quality third-party Nokia BP-4L 1500 mAh battery. Verify voltage stability before charging to prevent power delivery issues on the motherboard. - Upgrade to Final Firmware (v400.34.93)
Flash the device to the last officially released firmware version.This update fixes minor screen transition bugs, optimizes RAM usage, and improves GPS lock times. - Install Symbian Root Certificates
Because factory SSL certificates have long expired, manually install updated root certificates via microSD card to allow local network tools and legacy apps to run without certificate errors. - Configure MicroSD Storage
Insert a Class 4 or Class 10 MicroSDHC card formatted to FAT32. While early documentation listed a 4 GB limit, historical testing archived on Wikipedia’s Nokia E90 reference page confirms cards up to 16 GB and 32 GB operate reliably.
Pros, Cons, and Common Pitfalls
Pros
- Exceptional build quality with metal-reinforced hinges.
- Ultra-wide 800×352 display ideal for terminal connections and text documents.
- Tactile QWERTY layout optimized for two-handed thumb typing.
- Excellent loudspeaker and voice call quality.
Cons
- Heavy form factor at 210 grams.
- Early production batches suffered from keyboard keys marking the inner screen when closed.
- Limited modern web browsing capability due to outdated web rendering standards.
Common Mistakes to Avoid
- Forcing the Hinge: The hinge has two fixed stop angles (100 degrees and 180 degrees). Forcing it beyond these points without pressing the release mechanism properly causes physical frame fatigue.
- Over-tightening MicroSD Cards: Avoid using ultra-high-speed UHS-II cards; stick to standard FAT32 formatted microSDHC cards for guaranteed read stability.
Frequently Asked Questions
Can the Nokia E90 connect to modern Wi-Fi networks?
It connects to 2.4 GHz Wi-Fi networks supporting 802.11b/g standards with WEP, WPA, or WPA2 encryption. However, it does not support 5 GHz bands or modern WPA3 security protocols.
What causes the inner screen scratch issue on early models?
Early production models had flat keys that sat too flush against the inner 4-inch display when closed. Nokia later resolved this by slightly lowering the keyboard profile and adjusting the rubber stoppers on the casing.
Does the device support modern email protocols?
It natively supports standard POP3, IMAP4, and SMTP email protocols out of the box. However, modern two-factor authentication (2FA) and OAuth2 security logins require specialized app workarounds or legacy mail servers.
Can you browse the web on this phone today?
Basic light HTML pages and retro-focused text websites render well on the internal S60 browser or Opera Mini. Complex modern scripts and heavy JavaScript will cause load errors or memory limits on the 128 MB RAM architecture.
