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DRAGON'S LAIR ENHANCEMENT ROM SET VERSION 2.1 - 1 January 2005
Created by Dave Hallock
with Jeff Kulczycki
INTRODUCTION
For units that no longer boot (bricked), the MediaTek SP Flash Tool can write firmware directly to the chip via a PC connection.
Do not rely solely on "8227L". You need the full .
The 8227L (or MTK8227L) is a widely used chipset for aftermarket Android-based car stereos. Because these units are manufactured by various companies using the same hardware platform, firmware updates are often universal but must be carefully matched to the unit’s specific configuration—typically the variant. Key Features of the Latest Update Android Auto Firmware Latest Update 8227l
Fix: Power down the unit. Press and hold the physical reset button (hole) with a paperclip while turning the car key. This forces the unit to read the recovery files directly from the USB port. Essential Post-Update Tweaks for Android Auto
The 8227L platform is one of the most popular chipsets powering aftermarket Android head units worldwide. Often labeled under generic brands or running custom skins, these budget-friendly devices rely heavily on firmware updates to maintain compatibility with modern smartphones. If you are experiencing lagging connections, black screens, or audio stutters, installing the latest Android Auto firmware update for the 8227L processor is the most effective solution. Understanding the 8227L Hardware Platform For units that no longer boot (bricked), the
Updating these units usually requires a manual process via USB: Identify Your Model : Check your system settings (usually under Settings > System Info ) to confirm you have the Download Firmware : Obtain the correct files for your specific resolution (e.g., 1024x600). Prepare USB : Format a USB drive to and place the update files in the root directory. Initiate Update
: These low-memory units are the most challenging. A stable baseline is the older “android-trunk-m0.AC8227L-V1.0” build (Android 6.0 kernel), though upgrading beyond this risks bricking. The 8227L (or MTK8227L) is a widely used
variants; using it on a 1GB model can permanently "brick" the device. The "Fake" Version Issue
Even with careful preparation, things can go wrong. Here are the most common problems and how to fix them.
The 8227L platform, commonly used in various Chinese Android head units (e.g., Junsun, Hizpo, Joying), can be updated to the latest Android Auto
ENHANCEMENTS
*also in the previous DLE 1.x series
DIP SWITCH SETTINGS
View the DLE 2.1 DIP switch settings chart.
VERSION
DLE 2.1 replaced DLE 2.0 by compressing the software to fit onto 3 EPROMs instead of 4, and by allowing the diagnostics ROM check to pass if other game EPROMs remain in the unused sockets, and by correcting a bug with one of the death scenes.
The 2.x series of DLE resequences the game to keep similarly-themed scenes in sections. Reversible scenes only need to be completed once during one game. The DLE 2.x scene sequencing chart provides a thorough explanation.
The 2.x prototype mode plays over eight minutes of cutting room floor animation that was added to the limited edition laserdisc, with the original experimental design concepts of multiple branching and the "ACTION" button that were present in the prototype Dragon's Lair arcade game.
(The original Dragon's Lair laserdisc works with the standard game mode. The limited edition disc is not required.)
DLE 2.0 succeeded the 1.x series.
EPROMS
DLE 2.1 is a 3 EPROM set that works with any working Cinematronics Dragon's Lair game using any laserdisc player or video source.
Dragon's Lair uses type 2764 or 27C64 EPROMs or compatible, rated 250ns or faster (2764-25).
EPROMs rated slower, such as 300ns and higher (2764-30), have been reported incompatible.*
National Semiconductor brand EPROMs have been reported incompatible.*
*(These are original hardware incompatibilities, not specific to this ROM.)
DOWNLOAD
VERY IMPORTANT!!!!!
The download contains readme21.txt. This complete text file, or a printout of it, MUST accompany all distribution of DLE.
These ROMs are EXTREMELY DIFFERENT and this information is essential, with new DIP switch settings and a guide for the prototype mode, among other things.
Keep it together with the ROM files. Keep a printout with your game cabinet, including through any change of ownership. Please don't leave new owners clueless. Thank you!
| DOWNLOAD DLE_21.zip NOW! |
| For EPROM set availability and shipment, contact Dave Hallock. |
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