Pour avoir plus de renseignements, il suffit de scanner le code avec ton téléphone et d’attendre la réponse.

Pour + infinitive is a very common French way to express purpose: to ..., in order to ....

So:

• Pour avoir plus de renseignements = To get more information
• literally: For having more information, but English would not say it that way

French often uses pour + infinitive where English uses to + verb.

Examples:

• Pour entrer, il faut un billet. = To enter, you need a ticket.
• Pour comprendre, écoute bien. = To understand, listen carefully.

Un renseignement means a piece of information, information, or details depending on context.

In many situations, French uses the plural des renseignements or plus de renseignements where English would simply say more information.

So:

• plus de renseignements = more information / more details

It is plural because French often treats this idea as separate pieces of information rather than as one mass noun.

Compare:

• Je voudrais un renseignement. = I’d like some information / one piece of information
• Pour plus de renseignements... = For more information...

Here, plus de means more.

So:

• plus de renseignements = more information

This is a very common pattern:

• plus de temps = more time
• plus d’argent = more money
• plus de détails = more details

A learner may notice that plus de can also appear in negative sentences:

• Je n’ai plus de temps. = I have no more time.

That is different because of ne ... plus. In your sentence, there is no negative structure, so plus de clearly means more.

Il suffit de + infinitive means it is enough to ..., you just have to ..., or all you need to do is ....

So:

• il suffit de scanner le code = you just have to scan the code
• il suffit de scanner le code et d’attendre = all you need to do is scan the code and wait

The il here is an impersonal il. It does not refer to a specific person or thing. It works like English it in expressions such as:

• It is necessary...
• It is enough...
• It is possible...

Other similar French expressions:

• Il faut... = It is necessary / You must...
• Il est important de... = It is important to...
• Il suffit de... = It is enough to...

Because suffire is followed by de when another verb comes after it.

Pattern:

• il suffit de + infinitive

Examples:

• Il suffit d’attendre. = You just have to wait.
• Il suffit de cliquer ici. = You just have to click here.
• Il suffit de lire les instructions. = You just have to read the instructions.

So in your sentence:

• il suffit de scanner... et d’attendre...

The de is required by the expression il suffit de.

This is elision.

In French, de becomes d’ before a vowel sound or a mute h.

So:

• de attendre becomes d’attendre
• de avoir becomes d’avoir
• de écouter becomes d’écouter

That is why the sentence has:

• de scanner le code
• et d’attendre la réponse

because attendre begins with a vowel.

Because both infinitives depend on il suffit de.

The structure is:

• il suffit de scanner le code
• et d’attendre la réponse

French often repeats the preposition before the second infinitive in this kind of structure. It makes the sentence clear and natural.

So the idea is:

• It is enough to scan the code and to wait for the response

In English, repeating to is optional in many cases. In French, repeating de here is very normal.

Yes. Scanner is a real verb used in modern French, borrowed from English but fully treated like a regular -er verb.

It means:

• to scan

Examples:

• Je scanne le document. = I scan / am scanning the document
• Tu as scanné le code. = You scanned the code
• Nous allons scanner la page. = We are going to scan the page

In this sentence it stays in the infinitive because it follows de:

• de scanner

Avec ton téléphone means with your phone.

• avec = with
• ton téléphone = your phone

This tells you the means or tool used to do the action: you scan the code with your phone.

French often uses avec in this very straightforward way:

• écrire avec un stylo = to write with a pen
• ouvrir avec une clé = to open with a key
• filmer avec son téléphone = to film with one’s phone

Ton is the informal singular form of your.

So:

• ton téléphone = your phone when speaking to one person informally

French has different words for your depending on formality and number:

• ton / ta / tes = informal singular your
• votre / vos = formal singular or plural your

So this sentence is addressing someone in an informal way, probably one person.

Compare:

• avec ton téléphone = speaking casually to one person
• avec votre téléphone = speaking formally to one person, or to several people

La réponse here means the response in a general, expected sense: the response that will come after scanning.

French often uses the definite article where English might say a response, the response, or just something more general depending on context.

So:

• attendre la réponse = wait for the response / wait for a reply

It suggests there is a specific expected reply coming from the action.

This is natural French. A similar example:

• attendre la confirmation = wait for the confirmation
• attendre la suite = wait for what comes next

Le code means the code, referring to a specific code that is already known from the situation.

In real life, the speaker and listener can both identify it, for example:

• a QR code shown on a poster
• a code on a screen
• a code on a document

French uses the definite article when the thing is specific or obvious in context.

So:

• scanner le code = scan the code

If it were un code, it would mean a code, any code, or some code not yet identified.

Yes. It is a purpose phrase, and French often places that kind of phrase at the beginning, but other word orders are possible depending on style.

Your sentence begins with it because it sounds natural and informative:

• Pour avoir plus de renseignements, il suffit de...

This is similar to English:

• For more information, just scan the code...

French likes this kind of fronted phrase in instructions, notices, and advertisements.

It is a mix of neutral instructional language with an informal pronoun choice.

The main clues are:

• ton téléphone → informal your
• the rest of the sentence is neutral and clear, suitable for instructions

So the tone is:

• friendly
• direct
• easy to understand

If you wanted a more formal version, you could say:

• Pour avoir plus de renseignements, il suffit de scanner le code avec votre téléphone et d’attendre la réponse.

That would be appropriate for formal customer communication or when addressing the public politely.