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Zsolt Pinter
Worked at National Instruments
Attends University of Miskolc
Lived in Debrecen



Zsolt Pinter

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Project: Resurrecting the Nexus 4
If you have a broken phone, probably it's fully functional except one or two hardware elements. With this post I want to help others with information that is difficult or impossible to find on the Internet.

The story:
In my case, the Nexus 4 digitizer stopped detecting touches in the middle of the screen in a line after years of heavy usage. I contacted all the phone repair stores in my hometown, because the warranty was not valid after years of course. The Nexus 4 digitizer can't be replaced easily without replacing the full display, so they wanted around 130 Euros for fixing the device.
I found it too much, so I ordered a new display and a digitizer with repair tools from eBay for around 50 Euros and I used my heater to remove the glue of the digitizer and fix it for myself.
After turning on the phone, I felt the quality of the display isn't as good as the original one, but it worked just fine.
After a half year, the digitizer started to show 5-6 ghost touches in one second and one week later the display also stopped working:
That time I decided it doesn't worth to buy a new display again.

The solution:
I decided I make a PC from the phone and the TV because except the display, everything just works fast and fluently and it runs the latest 5.1 Android.

I purchased a Simplort adapter to use the TV as the phone display,:
And I also purchased a mini Bluetooth keyboard with touchpad to control the system:
You can't use a USB hub with Slimport, it means you can't plug in your wireless 2.4 GHz radio keyboard, must get a Bluetooth keyboard. After some research I found I will have problems with the special Hungarian characters, so I decided to buy with English layout. It's perfect for browse the web or search or chat or basically enough for everything.

Yes, the Nexus 4 can boot without display
This was important for me, because if it is connected to the motherboard, the ghost touches coming from the broken digitizer would make the device unusable. The display has 2 connectors, the bigger is for the screen itself, other is for the digitizer.
I booted the phone without connecting them to the motherboard. I connected it to the TV via Slimport, and luckily I had picture on TV. I connected the digitizer and the screen to the motherboard and with some work I was lucky enough to quickly pair the phone with the bluetooth keyboard.
After the successful pairing I put a simple tape on both connectors, because I don't need the phone display anymore. It would just consume power and heat the device.
After I assembled the phone, I crossed my fingers and long-pressed the power button. 20 seconds later the TV showed the end of the boot animation I knew everything is fine and I not just have picture on the TV, but I also have control.
Previously I checked MHL vs. Slimport reviews, which said the MHL is the better, however I have 5.1 audio and I absolutely don't have any lag and I am fully satisfied with the result.

The Nexus 4 renders the screen in fullHD with 60 FPS
The LG Nexus 4 comes with 4.7 in (120 mm) diagonal TrueHD IPS with Corning Gorilla Glass 2, 768×1280 px (318 ppi).
However, the Adreno 320 GPU drew 60 frames in a second with 1920x1080p resolution!

Force landscape
I could attach a phone holder to the TV, which can hold the device horizontally. This way, the screen is forced to stay in landscape mode. I changed Google Now launcher to Nova launcher to make the landscape mode permanent:
OK Google hot word detection also works with this launcher.

How to get charging AC intead of charging USB
The Slimport needs power through microUSB to work and to charge the phone. All the power outlets are used, so I only can get the power from the TV. Luckily, the TV has one 1A USB output, which is ideal for using as the Slimport power source. However, getting faster charging also needs good cable. Only use 28/24 gauge cables for powering the system!
After 3 hours of heavy usage the phone is not hot at all, and the battery is also charged with +20%.

Battery life and phone settings
The phone is always plugged into the HDMI port, but it only gets power, when the TV is on. I made a test:
I set the display to never turn off (because I can change the signal source on the TV), I disabled the screen lock, and I changed the location service from high accuracy to battery saving (on the home Wi-Fi it is as accurate as GPS) and I keep Wi-Fi and Bluetooth always on. With this setup, the battery drained from 100% to 49% in 4 days and a few hours. I think it is pretty impressive from a more years old battery!
If someone turns on the TV during the week, the battery can't be discharged thanks to the battery saving functions of Android 5.1 Lollipop. I am thinking of turning "always listening hot word detection" on.
The phone has 2100 mAh battery, it won't cost much to leave the phone always on.
When I need something, I just change the source on the TV to the Slimport HDMI and I can use it without any loading time.

Now we have a really Smart TV with great features of the latest Android, we have a fast Google Chrome (which is way much faster and better than the TV's browser), we can install million more apps than previously, and basically the loading time is just gone (for example at YouTube). Now it has a fully functional office, and fitness app, and finally we can use the TV for video chatting. And who knows what other usage we will find out in the next few weeks. First we have to get familiar with the system, it is like we have a new TV :)
I also installed the AllCast Receiver from +Koushik Dutta :
Finally we can easily mirror other devices' screen to the TV.
I tried to use Cheapcast, it would be a dream to make it work, but it seems Google doesn't let Android phones work as a Nexus player. (Actually they are doing the same with Android Auto).
If I don't want to mirror other screen, or I want to send content from PC, I use +Pushbullet to easily share content to the N4:
To make sure I don't loose the connection (I don't want to disassemble the phone again lol), I installed +Cerberus  as a device administrator, I can use it's commands or the shell for some remote access.

Closing words:
Probably you also have a smartphone which has a small problem, and you don't use it anymore. With a little work probably it can be used for some kind of server and it may worth to play with it.
Camille Lahoud's profile photoAxel Cervera's profile photoPaweł Goliński's profile photoMarquis Myrie's profile photo
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True Random Number Generator for a True Hacker 
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Hasznos segítség a fotózáshoz #Fotózás   #Guide   - Tovább adni ér! (:
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Thanks Amit Agarwal! However I do not recommend Hola:
If you do not see the Facial Recognition option in your Google Photos yet, use this workaround #GooglePhotos  
Google Photos can automatically detect faces of people in your photo albums. Facial recognition is not available worldwide but there's a way to enable it.
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From spring to fall, I get around the city by bike. Since I’ve already bought the bike of my dreams (which will hopefully last me for decades to come) the arrival of Bubi (Budapest Bike) didn’t particularly excite me, although I’ve since come to realize there were times I could have made use…
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My first photo of a #lightning
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sotetben tobb eselyed van:) vagy hasznalhatsz ND filtert napkozben
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2 hete pénteken egy rejtett szám hívott, XY banktól, a beszélgetést rögzítik, felmérést végeznek, információt gyűjtenek, visszajelzést és értékelést várnak valamilyen ügyintézésemről, ráérek-e.
Történetesen nem értem rá, viszont ki szerettem volna próbálni a linkelt social engineering-es cikkből tanultakat, ezért igent mondtam.

Rögtön a közepébe is vágtak, és kérték a személyes adataimat, de ekkor megállítottam a beszélgetést. Elmondtam, hogy én a hívásból csak egy rejtett számot látok, és kérdeztem, hogy ők tudják-e igazolni magukat. Ezen a ponton megrekedt a beszélhetés. Rövid várakozás után megjegyezhetetlenül ledaráltak egy 90-es telefonszámot, ahol majd igazolják a felmérést nekem. Megegyeztünk, hogy utánajárok, és hétfőn délután visszahívnak.
Nem jártam utána. Hétfő óta eltelt egy hét, azóta sem hívtak. Tanulság nincs.
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Nem értem miért kellene a személyes adat ha ez egy legit felmérés. 
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Just got the DROK USB test dongle, and I LOVE it. Instantly shows me actual voltage and current draw to easily analyze USB chargers and cables. This is much more accurate compared to something like Ampere, or any other app really, and removes software from the equation when testing multiple devices.

Under $15 here:

The reason I went with that one is it supports up to 13V, meaning even the QC2.0 12V variety (let alone 9V). Pretty future-proof stuff, at least for now.

+David Ruddock got the same one and is working on a piece for +Android Police talking about it.

I'll be playing with it more in the coming days to see just how good/bad chargers and cables can get.
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+Android Police​​ it seems Android M has a new VPN permission system. Some tunnel apps get permission only for a second, but some works great after passing the warning window.
I checked 5.1.1 on the N4 and it doesn't have this option.
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Fun fact: Beats by Dre are made mostly of plastic... plus a few metal weights to give the illusion of quality.
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Turns a tablet into an Android Auto compatible headunit ! :)This is the 1st...
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I hack, mod, port and make stuff powered by Linux.
  • National Instruments
    Intern, 2014
  • Schönherz dot matrix display
    co-worker, 2010
    This is one of the largest dot matrix displays in the world, I've spent a lot of time working on the new color LED upgrade. Take a look at the photo gallery:
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Debrecen - Miskolc - Budapest, Hungary
Illegitimi non carborundum.
I'm an engineer student, geek, Ingress agent, skilled in tech.
Reduce, reuse, recycle is part of my life philosophy. We all live on the same rock, keep this in mind!
  • I've always been interested in science, electronics, technology and I try to keep myself updated with the latest stuff. I like making projects with Linux based embedded systems and additional circuits, but I'm also interested in the power of software, Linux, and Android development with the help of a Nexus. These are hobbies, too.

  • I like learning about foreign countries, cultures, food, life... I'm especially interested in Asia.
    In my free time I like spending my time with walking (I walk a lot), exploring the area, doing different kind of sports, and hiking, but unfortunately my country is not famous for its mountains.
    Oh, and I collect coins, too! I have old, new, polygon, Cyrillic, Arabian, Chinese... basically any kind of coins! I also have a coin with fraction on it! The oldest is almost a century old, and the most exotic is somewhere from a tropic island.
  • I'm not a big music listener, but I usually listen to indies, OSTs, chill out music, CMA is one of my personal favorites.
    You can find my Soundcloud likes as well as IMDb rating history in the link section below. 

  • You can expect me to post about my experiences, blog posts about events happened to me, some articles or everything I care about.
    Please note the fact that this is a personal profile, all my views are all my own.
Feel free to circle me up!
Bragging rights
I've started studying Chinese as my third foreign language.
  • University of Miskolc
    Electrical Engineering MSc, present
    Industrial Automation and Communication
Basic Information
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Other names
prwnd, 敖明
Zsolt Pinter's +1's are the things they like, agree with, or want to recommend.
Ampere - Android Apps sa Google Play

Did you ever felt, that one Charger/USB cable set charges your device really fast and the other not? Now, you can prove this with Ampere.Mea

Clock – Android Apps on Google Play

Enjoy Google’s material design clock experience on your Android device. • Set alarms, add timers, and run a stopwatch • Add your favorite ci

Portal - Wifi file transfers - Android Apps on Google Play

Getting pictures, videos, and other files from your computer onto your phone should be quick and painless. Portal helps by making it as easy

Headunit for AA - EXPERIMENTAL – Android-Apps auf Google Play

Turns a tablet into an Android Auto compatible headunit ! :)This is the 1st release and is highly experimental. Tricky USB configuration and

Test - Do Not Buy – Android-alkalmazások a Google Playen

Test app; Do not buy See Test app; Ne vásároljon Lásd

Foto - Apl Android di Google Play

Google Foto adalah tempat menyimpan semua foto dan video Anda, yang dapat ditelusuri dan dikelola menurut tempat, orang, dan berbagai hal ya

Mint: Finance, Budgets & Money - Android Apps on Google Play

From Intuit, the makers of TurboTax, QuickBooks, Mint Bills, and Quicken: the free Mint app helps you spend smarter and save more. Easily pu

Complete Linux Installer – Android Apps on Google Play

Complete Linux Installer is an all in one solution to installing Linux distros on your Android device. Brought to you by the LinuxonAndroid

Google Spotlight Stories – Apps para Android no Google Play

Mergulhe em um mundo de contação de histórias criado especialmente para dispositivos móveis. Engenheiros e cineastas aclamados pela crítica

KinoConsole - Stream games – Android-alkalmazások a Google Playen

Play PC games on your Android device. KinoConsole is remote desktop application optimised for streaming games to your smartphone or tablet d

DD-WRT Companion – Android-alkalmazások a Google Playen

DD-WRT is a Linux based alternative OpenSource firmware suitable for a great variety of wireless (WLAN) routers and embedded systems.Had you

Torque Pro (OBD2 / Auto) – Android-Apps auf Google Play

Messen Sie das Drehmoment und die Leistung Ihres Autos, entdecken und löschen Sie Fehlercodes, sehen Sie, was Ihr Auto zu tun bekommt – in E

Android TV Launcher – Android-alkalmazások a Google Playen

Android TV Launcher is the jumping-off point for starting all activities on your Android TV entertainment device. The Launcher is optimized

Android Auto - Android Apps on Google Play

Android Auto brings familiar apps and services to the screen in your dash, making it safer and easier to get the information you need while

Otp direkt bejelentkezés felolvasó

Nem egy bonyolult, úgyhogy nem vesztegetek rá sok szót. Ha az OtpDirekt küldi a bejelentkező sms-t, akkor felolvassa az ellenőrző számsort.

Cardboard Theater - App Android su Google Play

Ho creato una pagina 'Couch Games Software' su Google+ ( in Inglese): se ti interessa lo sviluppo di Cardboard Theater,

Laborlelet Kisokos – Android-alkalmazások a Google Playen

Az alkalmazás célja, hogy a segítséget nyújtson a felhasználók számára a kórházi laborleletekben szereplő orvosi kifejezések, adatok megérté

Flynx - Read the web smartly – Aplicações Android no Google Play

★★★★★ Destaque como um dos aplicativos essenciais da playstore pelo Google. ★★★★★ Destaque no The Next Web, Buzzfeed, LifeHacker, Gizmodo, B

Android System WebView – Aplikacje Android w Google Play

Android WebView to składnik systemowy bazujący na Chrome, który umożliwia aplikacjom na Androida wyświetlanie treści internetowych. Jest on

Interactive Events - Android Apps on Google Play

The Google Interactive Events App provides agenda details and speaker bios for managed events.

I hate when I will have an exam early in the morning, and I still can't have rest at 2 am because my bed is jumping thanks to Uni Café.
Public - 3 months ago
reviewed 3 months ago
The atmosphere of the place is excellent. The food was well-made and delicious. The service was OK, and drink was very expensive, but I enjoyed being there altogether.
Public - 4 months ago
reviewed 4 months ago
Everything is fine even after multiple purchases.
Public - a year ago
reviewed a year ago
Az ételt drágállom, bár nem volt annyira rossz. A felszolgálás nekem sem volt megszokott, de ettől még nincs kizárva, hogy mégegyszer betévedek oda.
Food: GoodDecor: GoodService: Poor - Fair
Public - 2 years ago
reviewed 2 years ago
21 reviews
I couldn't spend more time here, but looks like a beautiful tea oasis..
Public - a year ago
reviewed a year ago
They have a large variety of tea, the seller gave me helpful tips. Recommended.
Public - a year ago
reviewed a year ago
Egyetlen nagy elkerített területet kell elképzelni, ami körbesétálható. Nem tudom, mikor aktívabbak a medvék, nekünk 13 óra körül 2 pancsolt, 1 mézet nyalogatott, 36 pedig elbújt lustálkodni a barlangjába. A bocsok játszottak.
Appeal: Very GoodFacilities: Very GoodService: Very Good
Public - 2 years ago
reviewed 2 years ago