Just plug it in and it does the thing it’s supposed to do.

✔️ 1. Direct HDMI or micro-HDMI port

Some Android tablets have a micro-HDMI or even a full-size HDMI port.
→ You only need the correct cable (micro-HDMI → HDMI).

If your tablet has micro-HDMI, this is the easiest and most reliable option.

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✔️ 2. USB-C → HDMI (DisplayPort Alt Mode)

Newer Android tablets may support DisplayPort Alt Mode, which allows video output from the USB-C port to HDMI.

You need either:

a USB-C → HDMI adapter, or

a USB-C docking station with HDMI

HOWEVER, not all USB-C ports support video output.
Support depends on the device.

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✔️ 3. MHL / Slimport (older tablets)

Older Android tablets with micro-USB sometimes used:

MHL adapters (Mobile High-Definition Link)

Slimport adapters (less common)

These only work if the tablet specifically supports MHL/Slimport.

—

❌ 4. USB-A → HDMI cables do NOT work

Cheap USB → HDMI cables do not work unless the tablet’s USB port supports video output via Alt Mode.
They cannot “convert” the signal by themselves.

—

✔️ 5. Wireless alternatives (if HDMI is not possible)

If your tablet cannot output video at all:

Chromecast → TV: screen mirroring via the Google Home app

Miracast / Smart View (device dependent)

Not as low-latency as HDMI, but fine for movies and presentations.

—

Bonus backup:
Have a video camera that you can connect to your AV system. If everything else fails, install your camera to a suitable camera holder pointing to your tablet or smartphone screen, and show the video you get with the camera. This has worked as good backup option to be able to show the screen of devices where you can’t get video output using other methods.

6G: 6G will not bring major changes for consumers. Consumers have benefited from 5G, but, for example, in the automotive industry, Industry 4.0, and healthcare, its potential has largely gone unfulfilled. Despite this, 6G development is underway – now it is time to define the technology so that it provides real business value. The technology is expected to enable the use of digital twins, for example. A model called Everything as a Service (Compute-aaS, AI-aaS) will emerge, where computing power and AI services move to cloud services. Another key development step is Ambient IoT, which is a more advanced version of IoT technology and could potentially replace RFID systems in the future. Ambient IoT is already part of the 3GPP Rel. 19 planning. Open interfaces such as the Open RAN model, which should be considered in the early stages of 6G development. Mobile network operators want to ensure that “whatever they do for 5G and 5G Advanced is going to be applicable to 6G.

Chips: Qualcomm and MediaTek hold the top places in smartphone processor ranking list. After that come Apple and Samsung. Qualcomm unveils the Snapdragon G3 Gen 3, G2 Gen 2, and G1 Gen 2 for gaming handhelds, saying the G3 Gen 3 offers a CPU 30% faster than the previous generation. Regarding features, the Snapdragon G3 Gen 3 is Qualcomm’s first G-series chip to embrace Lumen, Unreal Engine 5′s fully dynamic global illumination and reflections system.

Android: There will be some changes in Android phones because Google will develop the Android OS fully in private. The future Android OS development will now fully happen behind closed doors, but Google says it’s committed to releasing source code. Amazon will discontinue its app store for Android on August 20 this year. Xaomi is working on a tool to run PC games on Android tablet.

Duopoly: Mobile duopoly by Apple and Google is seen an emerging problem. UK competition probe of mobile browsers finds Apple-Google duopoly is ‘anti-innovation’

Smart phone camera: Realme unveiled a new Ultra concept phone that offers DSLR-level photography in a smartphone. It supports using interchangeable lenses. The device features a customized 1-inch Sony IMX989 image sensor, designed to work with interchangeable lenses. Additionally, the phone includes an ultra-wide Sony IMX890 sensor and a periscope-style Sony IMX989 sensor.

The end of proprietary chargers is near? USB-C is now effectively mandatory in Europe as the new charging era begins. Now all phones and other wireless devices sold in the EU market must have a unified USB-C port. The USB-C connector requirements apply to various device categories, such as mobile phones, tablets, digital cameras, headphones, headset microphones, handheld video game consoles, portable speakers, e-readers, keyboards, mice, portable navigation systems, and earbuds or their charging cases. If a device supports fast charging, it must support at least USB Power Delivery charging technology. For laptops, the new requirements will apply starting April 28, 2026.

Energy marking: Mobile phones and tablets sold after Midsummer must have an energy label. This is an EU eco-design requirement that will come into effect on 20 June 2025. The aim is to extend the lifespan of mobile phones and tablets, increase their durability and reduce electricity consumption. In addition, the products must be easier to repair and their software must be updated for longer than before.

Smart watches: Generative AI is expected to revitalizes wearable devices and smartwatches drive wrist-worn wearable growth in 2025 even though there are some worrying about Forever Chemicals in Smartwatch Bands. Also Smartglasses and Smart Rings Poised for Growth

Foldable phones: Foldable phones are a glimpse into the future but also not really there yet. Samsung just teased a tri-fold folding phone at Galaxy Unpacked 2025.

President Donald Trump imposed 20% tariffs on China after taking office in January. Under a sweeping new plan aimed at stimulating U.S. manufacturing announced Wednesday, he added another 34% in reciprocal tariffs, bringing the total to 54%. Most of the 200 million iPhones Apple produces each year are made in China, and the iPhones could take the big hit in the price. The high end iPhone can cost soon up to $2300.

The price of Samsung phones can increase because Korea faces steep tariffs as US launches broad trade overhaul: Confusion arises as Trump cites 25% tariff for Korea, while White House document lists 26%.

Screen Calibration: Check if your device has a screen calibration option in the settings. Calibrate the touchscreen to ensure accurate input detection.

Clean the Screen: Dirt, dust, or smudges on the screen might be causing false touches. Clean the screen thoroughly and try again.

Touchscreen Sensitivity: Adjust the touchscreen sensitivity settings in your device settings. Sometimes, setting it to a lower sensitivity can help eliminate ghost touches.

Faulty Screen Protector: If you are using a screen protector, it may be causing interference. Try removing the screen protector to see if the issue persists.

Software Update: Ensure that your device’s operating system and all apps are up to date. Sometimes, software bugs can be fixed with updates.

Restart or Reboot: Restarting your device can sometimes resolve temporary glitches causing ghost touches.

Hardware Issues: If the problem persists, there might be a hardware issue with the touchscreen. In this case, it’s recommended to contact the device manufacturer or visit a service center for professional assistance.

Check for Interference: External factors such as electronic interference from other devices or a malfunctioning digitizer can also cause ghost touches. Try using your device in a different location to rule out interference issues.

Static electricity: Static electricity can sometimes cause issues with touchscreens. Static electricity is more likely to occur in dry environments. Increasing the humidity in the room can help reduce static build-up. Some clothing materials and accessories can contribute to static build-up. If you are experiencing issues with static electricity during winter, when wearing certain types of gloves, try using touchscreen-compatible gloves.

Faulty charger: Why does not my tablet touch screen work when powered with third party mains power supply, but works with the original power supply? The reason why the other power supply caused the touch screen to fail was related to the noise given out by the power supplies and the touch screen electronics sensitivity to this noise. If you have problems when your phone is connected to charger, then try if disconnecting the phone from the charger helps.

Factory Reset: If all else fails, consider performing a factory reset on your device. This will erase all data, so make sure to back up important information before doing so.

Professional Repair: If the issue persists and your device is still under warranty, consider contacting the manufacturer or authorized service center for professional assistance. They can diagnose and repair hardware-related problems.

Remember to follow the manufacturer’s guidelines and recommendations specific to your device when troubleshooting touchscreen issues.

More material on the subject:

Touch screens and charger noise
https://www.epanorama.net/newepa/2013/03/12/touch-screens-and-charger-noise/

8 Ways to Fix Ghost Touch Problems With Android
Is your phone acting as though a ghost keeps tapping and touching the screen? Here are all the steps you can take to fix it.
https://www.makeuseof.com/how-to-fix-ghost-touch-problem-android/

Touchscreen issues caused by static electricity (demo and PROOF)
https://community.oneplus.com/thread/193169

Erratic touchscreen behavior or frozen screen caused by static electricity from body or charger
https://forum.fairphone.com/t/erratic-touchscreen-behavior-or-frozen-screen-caused-by-static-electricity-from-body-or-charger/74635

CVE-2023-24023 Detail
https://nvd.nist.gov/vuln/detail/CVE-2023-24023

Bluetooth BR/EDR devices with Secure Simple Pairing and Secure Connections pairing in Bluetooth Core Specification 4.2 through 5.4 allow certain man-in-the-middle attacks that force a short key length, and might lead to discovery of the encryption key and live injection, aka BLUFFS.

Base Score: 6.8 MEDIUM

Paper with more details
https://dl.acm.org/doi/pdf/10.1145/3576915.3623066

Github
Bluetooth Forward and Future Secrecy Attacks and Defenses (BLUFFS) [CVE 2023-24023]
https://github.com/francozappa/bluffs

Moreso, without having to read and digest all that information, what can we do, if anything, to be safe from an attack?

Update your device and turn Bluetooth off when your not using it seems to be the only viable options. I’m not aware of any device that has a patch for this yet. So turning off Bluetooth seems to be the only option.

The first Android is 15 years old, and it is the opposite of everything we want in a smartphone today
https://www.techradar.com/phones/the-first-android-is-15-years-old-and-it-is-the-opposite-of-everything-we-want-in-a-smartphone-today

The HTC Dream / T-Mobile G1 is fifteen years old as of September 23. This first Android phone was launched in 2008 as the Dream in Europe, then a few weeks later as the T-Mobile exclusive G1. Looking at the phone now, it’s symbolic of Android’s promise, and endemic of everything that has gone wrong since the Apple / Google duopoly of the smartphone world took hold.

It’s such a compilation of bad smartphone ideas that it’s essentially the antithesis of everything we expect from the best smartphones today.

Nokia is selected by Vodafone to be its technology partner for Mission to the Moon project.
NASA will fund a project by Nokia to build a 4G cellular communication network on the moon with $14.1 million.
The network will configure itself and establish a 4G/LTE communications system on the moon.
An LTE connection will be established between the lander and the rover.
Vodafone 4G network will enable first live-streaming of HD video from the Moon’s surface to a global audience.

The Finnish telecommunications group plans to launch the network on a SpaceX rocket over the coming months.
Intuitive Machines plans to deliver the equipment to the moon on their lunar lander.
The network will be powered by an antenna-equipped base station stored in a Nova-C lunar lander designed by U.S. space firm Intuitive Machines, as well as by an accompanying solar-powered rover. Nokia says the technology is designed to withstand the extreme conditions of space.

Sources and links to more information:

4G internet is set to arrive on the moon later this year
https://www.cnbc.com/2023/03/28/nokia-set-to-launch-4g-internet-on-the-moon-later-this-year.html

NASA is launching a 4G phone network on the moon
Nokia’s lunar LTE network will allow astronauts to make calls, stream data and remote control robots.
https://www.cnet.com/news/nasa-is-launching-a-4g-phone-network-on-the-moon/

Nokia has aimed to moon for few years
https://www.nokia.com/about-us/news/releases/2018/02/27/nokia-is-selected-by-vodafone-to-be-its-technology-partner-for-mission-to-the-moon-project/

Got any signal up here? Nokia to build mobile network on the moon
https://www.reuters.com/article/nokia-nasa-moon-idUSKBN2741JR

NASA funds Nokia plan to provide cellular service on moon
https://www.upi.com/Science_News/2020/10/15/NASA-funds-Nokia-plan-to-provide-cellular-service-on-moon/2001602710195
https://www.nasa.gov/directorates/spacetech/solicitations/tipping_points/2020_selections

The Matrix phone to the iPhone – and that unforgettable ringtone: 50 moments in 50 years since first mobile call
https://news.sky.com/story/the-matrix-phone-to-the-iphone-and-that-unforgettable-ringtone-50-moments-in-50-years-since-first-mobile-call-12845390
To mark 50 years since the first mobile phone call, here are 50 moments that got us to where we are.

50 years since first mobile phone call – BBC News

50 years since first cellphone call, engineer looks back at milestone

NASA announces crew for first trip back to the moon in over 50 years
https://www.cbsnews.com/video/nasa-announces-crew-for-first-trip-back-to-the-moon-in-over-50-years/
Three men and one woman have been selected for NASA’s next planned flight to the moon. For the first time ever, the crew of astronauts headed for the moon include a woman and a Black man. Mark Strassmann reports.

The barcode turns 50 years old – a new one is coming
Viivakoodi täyttää 50 vuotta – uusi tulossa
https://www.uusiteknologia.fi/2023/04/03/viivakoodi-tayttaa-50-vuotta-uusi-tulossa/

The bar code, developed to speed up product logistics, just turned 50. They are scanned more than 10 billion times a day and are used by numerous commercial and industrial companies to increase the efficiency, reliability and transparency of their operations. A new generation barcode version is also coming.

The barcode behind the invention of logistics, introduced by the GS1 organization in 1973, has also largely changed the way we shop. The business sped up significantly when, instead of typing the prices, the products could be scanned quickly at the cash register.

Today, the barcode symbol is already on more than a billion products, and products are identified with it in 150 countries. The “beep” at the cash register is known all over the world precisely for the automatic reading. And while all barcodes may look the same, the power lies within them.

At the end of 2020, GS1 started the transition from traditional barcodes to new generation barcodes together with key players in the grocery trade. More than 20 countries and territories, including the United States, China, Australia and Brazil, have already implemented successful pilots. In Finland, GS1 has started preparations for the introduction of the GS1 2D code.

The text message is celebrating its 30th birthday – the first “Merry Christmas” SMS was sent to a mobile phone by a Vodafone engineer in Berkshire in the UK on 3 December 1992.

Originally, an SMS could only be text, up to 160 characters long. The concept was born in the early 1980s but it was almost 10 years before one would be sent to a mobile device.

The SMS is still used, although internet-based, encrypted messaging platforms like WhatsApp and iMessage are far more popular.

According to Statista, there were 40 billion SMS messages sent in 2021 in the UK, down from 150bn in 2012.

The reform is part of the EU’s efforts to improve the recycling of products, especially electronics, and to make life easier for consumers through a standard solution. The new rules are intended to ensure that consumers no longer have to buy a new charger and cord every time they buy a new device, and that all small and medium-sized devices can be charged with the same USB-C charger.

The new EU standard for charging will be USB-C connection in the EU. The speed of fast charging will also be harmonized in the near future, promises the European Parliament. Although the charge interface proposal is already certain, it will have to be formally approved by the European Parliament and the Council after the summer recess. The directive will then be published in the Official Journal of the EU, after which, after a two-year transition period, all new devices will have to use a USB-C connection.

This means that in Europe, by 2024, a USB-C connection will be required as a charging connector for portable electronics. All Mobile Phones, Tablets and Cameras sold from Fall 2024 must be able to be charged with USB-C chargers. Mobile phones, tablets, e-readers, in-ear headphones, digital cameras, headphones, handheld video game consoles and portable speakers that can be charged with a wired cable must be equipped with a USB-C port, regardless of the manufacturer, ”the release said.

Laptops must also comply with the new rules more than three years after the rules come into force. At the same time, the speed of fast charging would be harmonized for devices that support it, so that charging is equally fast on all compatible devices.

The new regulation does not apply to devices that cannot include a USB-C port due to the size of the device. These include, for example, smart watches and activity bracelets.

Or unless wireless charging then makes the whole connection unnecessary. The EU’s press release specifically says the rules apply to devices “that are rechargeable via a wired cable,” meaning a device that only charges wirelessly would not need to be fitted with a USB-C port. Wireless charging is also expected to become more common. The European Commission can therefore regulate the compatibility of wireless charging solutions with the so-called delegated regulations.

Pushing for common charger has been a long process. The European Commission announced the current plans for the legislation last September, but the bloc’s efforts to force manufacturers to use a common charging standard go back over a decade. Parliament and its Committee on the Internal Market have been pushing for a decision on universal chargers for portable electronics for ten years (first tried with microUSB). The whole time Apple has considered the EU’s move to a universal charger unnecessary. These new obligations will lead to more re-use of chargers and will help consumers save up to 250 million euro a year on unnecessary charger purchases. Disposed of and unused chargers are estimated to represent about 11,000 tonnes of e-waste annually.

Sources:
https://www.europarl.europa.eu/news/fi/press-room/20220603IPR32196/trilogisopu-yleislaturista-tavoitteena-vahentaa-elektroniikkaromun-maaraa
https://www.europarl.europa.eu/news/en/press-room/20220603IPR32196/deal-on-common-charger-reducing-hassle-for-consumers-and-curbing-e-waste
https://www.europarl.europa.eu/news/fi/press-room/20220412IPR27115/common-charger-meps-agree-on-proposal-to-reduce-electronic-waste
https://multimedia.europarl.europa.eu/en/webstreaming/press-conference-by-alex-agius-saliba-rapporteur-on-outcome-of-trilogue-on-common-charger_20220607-1230-SPECIAL-PRESSER
https://www.theverge.com/2022/6/7/23156361/european-union-usb-c-wired-charging-iphone-lightning-ewaste?scrolla=5eb6d68b7fedc32c19ef33b4
https://www.iltalehti.fi/digiuutiset/a/ba6a457b-65af-4bb9-931f-bbcef2f3b195
https://www.is.fi/digitoday/art-2000008869932.html
https://www.uusiteknologia.fi/2022/06/07/eurooppa-valitsi-usb-c-latausliitannan-kayttoon-vasta-2024/
https://www.uusiteknologia.fi/?s=USB-C
https://www.epanorama.net/blog/2010/12/30/eu-standards-for-common-mobile-phone-charger/
https://www.macrumors.com/2022/05/11/iphone-15-ditch-lightning-for-usb-c/?scrolla=5eb6d68b7fedc32c19ef33b4
https://techcrunch.com/2022/04/20/eu-common-charger-rules/
https://etn.fi/index.php/13-news/13448-apple-rimpuilee-eu-n-laturipaeaetoestae-vastaan
https://www.epanorama.net/blog/2021/05/27/higher-power-usb-c-will-deliver-240w/