Spyglass is an advanced compass and GPS navigation app for iOS and Android. Spyglass comes in handy as a car, bike, boat, aircraft, vehicle, or walking compass. GPS navigator gives you directions while driving, cycling, sailing, flying, hiking off the road, in the field and in the woods, in the sea and in the air.
Spyglass
Commander
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Turn your device into an advanced multispectral gadget that includes all sensors you need: GPS, digital compass, gyroscope, accelerometer, camera.
Reach unbelievable precision with the gyrocompass that is similar to air or marine navigation. Forget about any compass interferences. Get a live compass working on devices with no compass sensor.
Find and track your location. Monitor your coordinates in geo and military formats. Check altitude, current and maximum speed, and course. Use imperial, metric, nautical, and military units.
Find directions with the Mil-Spec compass operating in 3D space at any orientation. Monitor direction hints about lots of targets, updated in real time on the azimuth circle.
Measure distances to objects with a rangefinder reticle as in famous sniper scopes in real time.
Observe both your target’s and your own position on maps rotated automatically according to the current azimuth. Use street, satellite, or hybrid maps.
Track the position of any location, bearing, or star along with the Sun and the Moon in real time. Look at the objects through the planet Earth. Some objects are shown with the help of augmented reality. Get information about object distances, azimuths, and elevations.
Visually estimate the heights of buildings, mountains and other objects. Calculate distances from dimensions or vice versa. Get a visual picture of angles and distances measurements.
Tag locations and bearings.
This video shows how you can save your custom places and waypoints, see them on maps or augmented reality displays, and navigate precisely to them later using the gyrocompass mode and navigating by the sun for higher precision.
This video shows how you can share your current or saved location with your friends so that they could easily find the way to it, no matter what device or software they are using.
This overview video shows what you will see when you first open and start using Spyglass. It covers the app's main features, modes, and customization options. oppo a9 2020 custom rom work
This video shows how you can use the Rangefinder to measure distance to your target. Just like a reticle in a sniper rifle, the Rangefinder in Spyglass is based on the height of an average human (1.7m/5.6ft).
This video shows how you can solve the hazardous accuracy issues, typical of most digital compasses, and get the highest precision possible on your device. Custom ROM development relies heavily on the underlying
This video shows how using the Sextant tool you can measure the size of a building/object if you know the distance to it. Or vice versa – how you can measure the distance if you know the size.
This video explains how to improve accuracy of the compass on iPhone or iPad using maps and the gyrocompass mode. Project Treble and GSI Compatibility | ROM Name
This video shows how you can document significant locations, trail hazards, violations, or incidents by grabbing pictures with myriads of positional data overlaid.
This video shows how you can use Spyglass as a backup speedometer for your vehicle, get clear compass directions on back road and cross country road trips, trace your position on the map, and control your vertical speed.
That's how your iPad screen looks when you use night mode maps in Spyglass and Commander Compass apps.
Custom ROM development relies heavily on the underlying chipset architecture. Because the Oppo A9 2020 utilizes a platform, it is much friendlier to third-party development than MediaTek-powered alternatives. 1. Project Treble and GSI Compatibility
| ROM Name | Android Version | Stability | Bugs | Best For | |----------|----------------|-----------|------|----------| | (GSI) | 13 | 90% | VoLTE broken, auto-brightness slow | Stock Android purists | | CrDroid GSI (v9.x) | 13 | 85% | Fingerprint may lag, NFC issues (if you have NFC variant) | Customization lovers | | Evolution X GSI | 13 | 88% | Same as above + SELinux permissive | Pixel-like features | | LineageOS 20 GSI | 13 | 80% | Camera flash delay, no FM radio | Minimalists | | Project Elixir GSI | 13 | 82% | Random reboot once/week | Beautiful UI |
The Oppo A9 2020 uses File-Based Encryption (FBE) by default.
If an unofficial exploit is used to break past the bootloader lock, the Oppo A9 2020 supports , meaning it can technically run Generic System Images (GSIs) .
) is a specialized task because Oppo devices generally have restricted bootloaders. This "paper" outlines the current state of development, technical requirements, and installation workflow for the device as of early 2026. 1. Development Overview Oppo A9 2020
Need the latest development status? Check the XDA Developers forum for "OPPO A9 2020" – but expect few new posts. Most developers abandoned this device in 2023.
Once the flashing process completes successfully, tap on . Select Reboot System .
Connect your phone to your computer using an original USB cable.
Excited by their progress, Alex and Ethan shared their creation with the XDA community. The response was overwhelming, with many users downloading and testing their custom ROM. The feedback was mostly positive, with some users reporting that Aurora was the best ROM they had ever used on their Oppo A9 2020.
Evolution X brings a Pixel-like design but embeds an extensive customization menu. It lets you tweak status bar icons, themes, hardware button configurations, and lock screen layouts. Step-by-Step Installation Guide
Looking for more technical details about your phone's specifications, or want to check out a safe launcher to give your A9 2020 a fresh new look right now? Let me know how I can help further!
However, modifying the Oppo A9 2020 is uniquely challenging compared to other Qualcomm Snapdragon 665 devices. Understanding the strict limitations imposed by Oppo’s software ecosystem is vital before attempting any flashing procedures. The Current State of Custom ROM Support
(such as official LineageOS or Pixel Experience) specifically built for the OPPO A9 2020 GSI (Generic System Images)
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