
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.
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.
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.
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.
The Huawei Mate 8, released in late 2015, was a landmark device for the Chinese manufacturer. Powered by the ambitious Kirin 950 chipset—one of the first mass-produced 16nm FinFET processors—and boasting a massive 4000mAh battery, it signaled Huawei’s arrival as a legitimate contender to Samsung and Apple. Yet, like all smartphones, its official software support was finite. For a niche but passionate community of users, the death of official updates was not an end, but a beginning. This essay examines the complex, often frustrating, yet ultimately vital world of custom ROMs for the Huawei Mate 8, exploring the technical barriers, the community triumphs, and the philosophical question of device longevity. The Kirin Conundrum: A Developer’s Nightmare To understand the Mate 8’s custom ROM scene, one must first understand its greatest obstacle: the HiSilicon Kirin SoC. Unlike the dominant Qualcomm Snapdragon chips found in most Android flagships, Kirin processors did not benefit from Qualcomm’s extensive Code Aurora Forum (CAF) support, which provides standardized kernel and driver code. Huawei guarded its proprietary hardware interfaces and camera binaries closely. This meant that while a Snapdragon phone might receive a stable Android 10 port from a single developer working over a weekend, the Mate 8 required painstaking, reverse-engineered workarounds.
Consequently, the Mate 8 never enjoyed the vibrant, sprawling developer ecosystems of devices like the Nexus 6P or the OnePlus 3. The vast majority of custom development was concentrated on the Chinese forum and, to a lesser extent, XDA-Developers. The scene was dominated by two types of ROMs: EMUI-based "clean" ROMs (debloated, optimized versions of Huawei’s own software) and ambitious AOSP (Android Open Source Project) ports (attempts to bring stock Android or LineageOS to the device). The Highs: Breathing New Life into Old Hardware Despite the barriers, the custom ROM community achieved notable successes. The most significant were the unofficial LineageOS builds, primarily versions 14.1 (Android 7.1.2) and 15.1 (Android 8.1). For a device that officially ended at Android 7.0 (EMUI 5.0), running a stable Android 8.1 ROM was a revelation. Users reported improved RAM management, a more responsive interface, and the removal of EMUI’s aggressive background process killing, which often crippled notifications.
Yet, to dismiss the custom ROM scene is to miss its deeper significance. The Mate 8 custom ROM community represents a form of digital preservation and resistance against planned obsolescence. For a device whose last security patch dates to 2018, a custom ROM like LineageOS 18.1 (Android 11), however buggy, provides updated security patches and modern privacy controls. It allows a retired flagship to serve a second life as a dedicated media player, a home automation hub, or a backup navigation device. The developers who ported these ROMs were not simply coders; they were archivists, ensuring that the Kirin 950’s engineering marvel did not vanish into e-waste. The story of the Huawei Mate 8 custom ROM scene is not one of mainstream success, but of dedicated passion. It is a testament to the ingenuity of developers who reverse-engineered a locked-down ecosystem and the patience of users willing to sacrifice camera quality for a newer Android version. The Mate 8 will never be a developer darling like the Google Pixel or Xiaomi Mi series. However, for the few who still cherish its metal unibody and legendary battery life, a custom ROM offers a final, defiant act: the choice to keep an old friend alive, not because it is easy, but because it is possible. In an age of disposable electronics, that is no small achievement.
For those who valued performance over features, builds offered a lean, near-stock experience. Meanwhile, Chinese developers on the Coolpad forum produced "FrankenROMs"—hybrids that combined newer security patches with Huawei’s camera libraries, preserving the device’s excellent 16MP Sony IMX298 sensor performance. The ability to overclock the Mali-T880 GPU via custom kernels like Kirin-Vision added a final, defiant spark of gaming viability to a device otherwise destined for the drawer. The Lows: The Price of Freedom However, the journey to custom firmware was fraught with peril. Huawei’s locked bootloader policy was the first gatekeeper. Until 2018, Huawei provided official unlock codes, but after that, they abruptly stopped. Users seeking custom ROMs for the Mate 8 today must rely on deprecated, unofficial exploits (like DC-Unlocker or HCU-client) that cost money and carry the risk of permanently bricking the device.
Even after unlocking, the technical debt remained. Almost every custom ROM for the Mate 8 carried a list of "non-working" features: VoLTE, widevine L1 (breaking Netflix HD), and, most critically, the IR blaster. Camera quality was another casualty; while basic拍照 (photo taking) worked, Huawei’s proprietary image processing algorithms were lost, resulting in grainy low-light shots compared to stock EMUI. Bluetooth audio codecs like LDAC remained unstable, and the fingerprint sensor’s response time often lagged. The user was forced to trade hardware functionality for software modernity—a compromise not required on better-supported devices. Is a custom ROM for the Huawei Mate 8 worth it in 2024? From a purely pragmatic perspective for a non-technical user, likely no. The official EMUI 5.0 (Android 7.0) remains the most stable, battery-efficient, and feature-complete firmware. Installing a custom ROM invites a cascade of minor bugs.
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