If you have ever searched for how to hide your WhatsApp online status, speed up a slow phone, or fix Wi-Fi that only works in one room, you have probably come across the phrase “tech on dicas.” It is the name of a tips website — “dicas” is the Portuguese word for “tips” — and it has become shorthand for practical, everyday technology advice: WhatsApp tricks, smartphone fixes, useful apps, and internet connectivity help.
This guide explains what Tech On Dicas is, and — more usefully — collects the best everyday tips from across those topics in one place, written for your phone as it actually is today. Nothing here requires a factory reset, a paid app, or a degree in computer science. And where a tip has a catch, we say so.
What is Tech On Dicas?
Tech On Dicas (techondicas.com) is an independent tips blog covering WhatsApp, smartphones, apps, internet connectivity, cars, and extra income ideas. Its most popular topics are the ones people actually struggle with daily: WhatsApp privacy settings, freeing up phone storage, making an old Android phone faster, and getting devices to connect properly.
A quick word of caution that applies to any tips site, including this one: check the date on the article and the phone model it describes. WhatsApp and Android change their menus regularly, so a setting that lived under “Privacy” last year may sit somewhere else today. If a step does not match your screen, search within your phone’s Settings app for the setting name instead of tapping blindly.
This guide is not affiliated with techondicas.com. It is our own roundup of the same everyday problems, with the steps that work in 2026.
WhatsApp tips that actually matter
WhatsApp is where most people feel their phone problems first, because it holds their photos, videos, documents, and half their social life. Four settings solve most complaints.
1. Control who sees you online
Open WhatsApp, go to Settings, then Privacy, then “Last seen and online.” Here you can choose who sees your last activity — Everyone, My Contacts, My Contacts Except, or Nobody — and set online visibility to match. Hiding your online status does not make you invisible: your profile photo, status updates, and read receipts each have their own separate controls, so review all three if privacy is the goal.
2. Turn off read receipts — knowing the exception
In the same Privacy menu you can switch off read receipts (the blue ticks). One exception trips people up: in group chats, read receipts behave differently, and message reactions and some business interactions can still show activity. Do not assume every indicator disappears.
3. Stop WhatsApp eating your storage
WhatsApp’s biggest storage hog is almost always group media. Go to Settings, then Storage and data, then Manage storage, and you will see chats ranked by size. Before deleting anything, save what matters somewhere else and open the copies to confirm they are complete — then delete in stages, biggest chats first. Also turn off automatic media download for groups: Settings, then Storage and data, then Media auto-download, and set it to Wi-Fi only or off. That one change stops the slow re-accumulation that undoes every cleanup.
4. Use WhatsApp on two phones — safely
You can now link a second phone to the same WhatsApp account from the official app’s setup screen (“Link to existing account”). Two warnings: first, message deletions sync across linked devices, so a second phone is not a backup. Second, regularly check Settings, then Linked devices, and remove any session you do not recognise. Never share a registration code with anyone offering to configure your account remotely — that is how accounts get stolen, and it follows the same pattern as the phishing messages that target phone users every day. For the full backup process, see our WhatsApp backup guide.
Make a slow smartphone fast again
When a phone slows down, resist the urge to start with a factory reset. Diagnose first, because the fix depends on the pattern:
- One app freezes, the rest is fine: update that app, then clear its cache (App info, then Storage, then Clear cache). Clear cache removes temporary files only; “Clear data” wipes logins and local content, so do not confuse the two.
- Everything is slow: check free storage first. Android phones get noticeably sluggish when storage drops below roughly 10 percent free. Delete large downloaded videos, old offline maps, and duplicate photos — or move them to a cloud backup first. Our Android storage guide walks through the same cleanup step by step.
- Slow only on the home screen or after unlocking: a misbehaving widget or launcher is a likely suspect; try removing recently added widgets before anything drastic.
Restart the phone after each change and check whether it helped. Changing five settings at once teaches you nothing about which one worked.
Battery life: the settings worth touching
Battery anxiety is usually solved by three adjustments, not by a new phone. First, check Settings, then Battery, then Battery usage: the apps at the top should match your actual usage — an app you barely opened sitting at the top is worth restricting. Second, lower screen brightness or switch on adaptive brightness, and shorten the screen timeout to 30 seconds. Third, be careful with aggressive background restrictions: they can silence notifications and reminders you actually need. Heat is the silent battery killer too — a phone left in a hot car or on a sunny dashboard ages its battery faster than any app.
Wi-Fi that works in every room
Weak Wi-Fi in one room is almost never a broken phone. Walk toward the router with the same device: if the connection improves dramatically, the problem is coverage, not your phone. Three fixes cover most homes: move the router to a central, open spot (not inside a cabinet or behind the TV), switch crowded 2.4 GHz networks to 5 GHz where your devices support it, and restart the router — it genuinely clears stale connections. If one room stays dead, a cheap extender or a mesh node beats replacing the router.
For a deeper dive, our guides to improving Wi-Fi speed and the new Wi-Fi 8 routers explain what actually changed in home networking this year.
Choosing apps without getting burned
The app store is where “tips” content gets dangerous, because plenty of apps promise miracles: volume boosters that distort audio, “cleaners” that delete things you need, and photo tools that lock exports behind subscriptions. Before installing anything, check four things: the developer’s name and other apps, the permissions it asks for (a torch app does not need your contacts), whether the feature you need is genuinely free or subscription-locked, and whether export adds a watermark. A free download is not a free tool.
The same scepticism applies to photo restoration apps. They can genuinely improve an old photo, but AI-reconstructed details — eyes, teeth, textures — are guesses, not recovered truth. Always restore a copy and keep the original untouched.
Phone privacy: the little dots at the top of your screen
Those coloured indicators are worth knowing. On an iPhone, an orange dot means the microphone is in use; a green dot means the camera is in use. On modern Android, a green indicator covers camera or microphone access. A dot alone does not prove spying — check which app is using the feature and whether you expected it. If it looks wrong, revoke that app’s permission and see if anything breaks. And before anything goes wrong, set up a screen lock, account recovery, and your manufacturer’s find-my-phone feature, with recovery details stored somewhere other than the phone itself.
Internet on the go: mobile data, hotspots and speed tests
When mobile data feels slow, first check whether you are actually on Wi-Fi or data — phones cling to weak Wi-Fi far longer than they should, so toggling Wi-Fi off for a moment is a legitimate test. For hotspots, remember that a phone sharing its connection drains battery fast and that some carriers throttle hotspot speeds separately from phone data. And when you run a speed test, run it twice: once next to the router and once where you actually sit. The gap between those two numbers tells you whether to fix coverage or complain to your provider.
The bottom line
“Tech on dicas” became a popular search because it promises something simple: answers to the small technology frustrations that eat your day. The best version of that promise is not a magic app or a secret setting — it is a short list of real controls, checked in the right order: privacy settings before panic, storage before a factory reset, coverage before a new router, and permissions before every install. Work through this guide’s sections in the order of your own annoyance, and most of these problems take ten minutes, not a new phone.
Frequently asked questions
What is Tech On Dicas?
An independent tips website (techondicas.com) covering WhatsApp, smartphones, apps, internet connectivity, cars, and extra income. This article is an original guide on the same everyday topics and is not affiliated with that site.
How do I hide my online status on WhatsApp?
WhatsApp Settings, then Privacy, then “Last seen and online.” Set last seen to Nobody and online visibility to match. Profile photo, status, and read receipts are controlled separately.
Why is WhatsApp using so much storage?
Usually group photos and videos. Check Settings, then Storage and data, then Manage storage, back up what matters, delete in stages, and turn off automatic group media downloads.
Does WhatsApp have a recycle bin?
No. Deleted conversations cannot be pulled back from a bin; recovery depends on having a backup made before the deletion. Check archived chats and confirm you are on the right account before concluding a chat is lost.
How can I speed up a slow Android phone?
Free up storage to above 10 percent free, update the misbehaving app, clear its cache (not data), remove suspect widgets, and restart after each step to see what helped.
Why is my Wi-Fi weak in one room?
Usually coverage, not your phone. Test near the router, move the router centrally, use 5 GHz where possible, and add an extender or mesh node for dead rooms.
