I have a technical question about a challenge that someone may be able to help me with.

The issue is:
I have an Android remote control app that currently can only transmit the image of the mobile device to the controlling Windows client.

I am looking for the ability to remotely control the Android device with a mouse and keyboard as well.

I have heard that this only works with special API's released by the respective device manufacturer.

Can anyone confirm this and if so, how do we get these API's (code)?

Thanks
McByte

That's an important detail, if this phone was taken apart previously for a repair there could any number of issues that causing problems. Did you do this yourself or was it done by a service center? If elsewhere, take it back to have them look things over. There's a good chance something to do with their reassembly caused this issue, but you'll need to sit down and examine the timeline of events and don't be surprised if you have to prove there's a cause and effect issue, not just a coincidental failure of some part.
Did you try doing a Network Settings Reset though? At least minimize the chance of a software issue so you can focus on this being a hardware issue.

I completely understand. I think my son explained it best when he told me that you wouldn't ask a bank teller what the best way would be to rob them.

Hi, here's an update. Three weeks ago I uninstalled a couple dozen apps, and inactivated another couple dozen apps. All I have left are three drawing apps, and a handful of others (Uber, ASTRO, etc.). My battery life is really good now (although that's probably just due to the new battery). Most important of all, performance is really good now (no more sluggish behavior). Initially after doing this, the "Android is upgrading" message continued to appear whenever I did a reboot. But it only lasted a couple minutes so I figured that was good enough.

But then, in the past couple days I suddenly noticed that the "Android is upgrading" message no longer occurs! And reboot time is shockingly fast (by my standards, for this device), like I don't know, maybe 5 seconds or something. So that is really nice.

It is mysterious how the problem took care of itself, or at least not as an immediate consequence of the actions that I took. I am certain of this because I kept track of these changes in writing. I only use this device every few days so it's hard to know when the change occurred.

From your description this sounds like you've peeled apart the front screen itself -- typically there's the outer glass, bonded with the digitizer (the foil), bonded with the LCD (the 'display' aspect to the Display).
https://www.ifixit.com/Store/Android/Galaxy-S10-Screen/IF416-001?o=3
Also by your description it sounds like backtracking at this point is going to be problem if you started from the front to tear down this phone instead of the proper way starting from the back:
https://www.ifixit.com/Guide/Samsung+Galaxy+S10++Screen+Replacement/136889
If that is the case, coming from the front there's a chance. H vital connections (ribbon cables and such) between the Display assembly and the logic board weren't cleanly separated. How far down did you disassemble things? If it's just a matter where the Display assembly is ripped apart than you can still just go about tearing the phone down starting from the back. The Display assembly will have to be replaced as a unit anyway.

What I'd like to know is how big the sensor is, because the area of the sensor is more important than the number of pixels. Samsung are strangely coy about that, but since the area of an individual pixel is 0.64* the area of the 0.8um pixels of the S21 Ultra's main camera and the pixel count is 1.85* larger the overall sensor area should be about 18% larger than the S21 Ultra's sensor. Which is positive, but probably sounds less attention-getting than the megapixel count itself (which I don't take too seriously since nobody in their right mind will want to use the full unbinned 200MP resolution with this sensor),

I cannot prove it but it may be due to carriers implementing various tools to prevent the scam calls. My carrier is VZW and recently they pushed out their Call Filter app to try to intercept such calls. I did download the update and have noticed an uptick in the number of times I see a call was received (in notifications) but phone never rang nor beeped.
Since this is something that I have no control over, I just call back the contact who called me; hoping that call connects. Alas, it is the ever escalating battle between the carriers and the scammer/spammer contingent.
BTW, I never buy extended car warranty, even on a new car purchase.

I wanted to add to this answer.....LG;'s support went above and beyond for me. They verified with Boost that my phone was indeed unlocked, and they believed that when I did a network reset the phone should just find the new tower (because of the new SIM) and auto-connect.

I did a hard reset for this phone, but as it booted up, I was always seeing a Virgin Mobile Screen...which bothered me. I knew that VM had ordered these phones spec'ed from LG with 'Network Operators' functionality removed...and I found also the ability to edit 'APN' points was turned off on this phone.

The thing that was stopping me during the steps to change service was always 'authentication error' when I tried to update my 'User Profile'. When the phone booted, I always saw 'Service Disabled' instead of a connection to a tower...so I knew that the update Profile Step was occurring through my home wireless...so my inability to 'authenticate' had to be related to my wifi. I removed the password security on my home wifi router. BAM...the update profile worked. Now I rebooted my phone and there was no longer any Virgin Mobile splash screen...just LG.

But I still saw 'No Service' instead of 'Service Disabled'. I thought I must need to edit the 'APN' settings too, in order to connect to a new network, but since that was grayed out...I decided I needed a new phone. But then...as I was sitting there...the cell phone rang. I got a junk call...but I dialed my home service, and bingo I was on my new network. The new network seemed to be intermittent in connecting from my house, but in the next few days it improved....not sure if this will be a long term problem due to an inferior carrier...they did recommend moving to 5G.

So... for anyone else with an LG7777 phone...Virgin Mobile made these phones purposefully restricted in terms of access to an open phone, but that is how the phone was spec'ed. Do a hard reset, use your new sim, and if you see 'authentication error..try again later' on your System Update functions, it is telling you there is an issue with your Wifi..not your tower.

Very nice research, could a signal generator app running at ~6.5kHz be an effective countermeasure, and would it be too loud for effective use of the phone for calls or other voice activity (recording meetings)?

Thanks, that's very helpful.

This is about managing a fleet of company issued Android devices.
https://www.android.com/enterprise/management/
It has various options like restricting what apps are allowed on company phones.

I suspect that beta version of MacOS is the culprit. I've run various Android emulators on MacOS Big Sur(NOT beta) no problems, with an Intel CPU Macbook Air.

Hadron said:

Aren't "CDMA" carriers hybrids these days: CDMA-based 3G but GSM-based 4G (LTE), which is why they now have SIM cards. But not being American (and CDMA being largely restricted to North America) I don't have experience of how that works in practice.

Click to expand...

CDMA is basically done in the US. The Sprint network is gone and Verizon has allowed non CDMA phones for several years, with their CDMA network ending next year.

Now a phone must support VoLTE on the network you want to use, but similar issues occur with that. For example some carrier branded phones wont work on another network even though the unlocked version will.

Some MVNOs will also restrict which phones you can bring, and it appears Xfinity is one of them. Their BYOD page only has options to check Galaxy, Pixel, and iPhones even though many other phones are compatible with Verizon.

ty!!

noticed my second s21 isn't quite as sharp looking as the store models. 1st one had a very very slight green tint. maybe I'm just being picky but is there something going on with these screens or am I just having bad luck? I should also mention that both have been dropped on concrete while in an otterbox symmetry case and tempered glass for the screen....idk if that would've done it? never had this issue before with Samsung phones. one of the corners is slightly dinged up on my current phone so idk if I just have shitty protection. can't find anything about this anywhere. the recent update fixed the brightness issue though although sometimes I think it dims slightly. anyone have any insight on this?

Ityxtoru said:

I have taught myself some basic programming (C, C++) as a hobby. But I often hear these days that people (professionals and hobbyists) develop mobile applications, games etc. for iPhone and other popular hand-held devices on their own. I am also interested in developing a small app or two for own mobile. I need to know the following, please guide me.

1. Am I right in selecting Objective C as my way of developing games and apps for my own mobile? Is Objective C the best choice?

2. Which are the best books for learning Objective C language?

3. Are there any good sites that offer Objective C tutorials?

4. Is there a free IDE/development tool for developing apps for my mobile in Objective C? I will be using my Linux machine only with either Ubuntu or Fedora, no Windows, so the IDE has to be Linux compatible.

5. Once I have develop something using an IDE on my Linux (Ubuntu/Fedora) pc, how do I transfer the same to my mobile or other hand-held device?

6. What is the best way to start? Send me your suggestions.

Thanks.

Click to expand...

Kotlin's pretty good. Javascript also helps.

RCG said:

Considering that there are at least a gazillion texting apps, I just don't get excited about Google's.

Use Signal, and make it your default.

Click to expand...

It's not a bad suggestion, and I personally think that Google's app is rather rubbish. But Signal has the same problem as other internet-based messaging apps: you need everyone you want to message to use it (a problem known as the "network effect", which make it very hard to displace incumbents once they become dominant - something key to the big tech companies' business models).

That's where SMS wins, because it's a standard that everyone has access to. Of course Signal can work as an SMS client, but frankly there are better SMS clients so I use Signal only for Signal messaging. That's also why Apple see iMessage as an advantage (because all iDevice users have it, and it's better than SMS), it's what Google were hoping RCS would do (if you can get it on all devices and networks by default then you have the universality of SMS but with better features plus you weaken Apple's iMessage lock-in, which is also why Apple won't support RCS on their devices).

The truth is that it's probably too late to improve this situation. The universal solutions (SMS, MMS) are limited (and the fact that in my country some carriers still charge through the nose for MMS makes it particularly unattractive), and the better solutions are fragmented. And with no standards body mandating a better upgrade to SMS/MMS (which, with the plethora of other messaging apps, is I suspect too late anyway) we seem for the time being to be stuck with the current situation of a mess of mutually-incompatible messaging services. I think the best we can realistically hope for is that Facebook are forced to sell WhatsApp at some point, which would at least introduce some diversity of ownership (since outside of China the messaging app market is totally dominated by WhatsApp and FB Messenger. And of course FB understand what network effects mean here, which is why they bought WhatsApp to avoid the risk of getting stuck as a niche player themselves).

EXTRA INFO

• Rating: 5.0
• Installs: 100+
• Download Size: 73M
• Version: 48

I created a channel for your app. Good luck!!
https://androidforums.com/apps/brain-test-can-you-solve-it.19891/

EXTRA INFO

• Rating: 0
• Installs: 1+
• Download Size: 29M
• Version: 1.1

You have tried restarting the Oppo phone? But it sounds like it could be a bug in the software. Check that you got the latest versions installed.

Good or bad, I did it.

"Number Transfer in progress" is what Mint Mobile is telling me, and I have a temporary number (which no one knows) which works.

Completed. I am now a Mint Mobile customer, and nothing got fouled up.

E-SIM is great!

Welcome to AF!!!!!!!!!!!!!

AOS is definitely a good game. not many games i stick around with but ive played this one for years. Since the pandemic his game has really popped off with updates. Really good ad-free content.

_DeathFace